Behind Closed Doors

Our parents had passed away quite a few years ago so now there was just my sister (Joan), my brother (Greg) and myself (Mark). Joan was about 6 years older than my 45 and Greg was another 5 years older than Joan. We weren't really close as far as visiting and talking regularly but we were always there for each other if something came up. All our children were grown up, moved out and some had kids of their own.

It was January and Greg and his wife were doing their usual 2 months in Mexico and I'd just gotten back from a couple of weeks away when Joan called and I could tell right away that something was wrong. She told me she'd had a minor stroke just after I left and was back at her townhouse but couldn't fully look after herself yet and was wondering if she could stay with me until she was able to recover properly. We'd both been single for almost 10 years, I was divorced and she was widowed. Seeing as I was by myself in the house, I said that would work fine and we made arrangements to get the stuff she needed moved over.

It took a bit for both of us to get used to sharing a house with someone again but pretty soon the little glitches had smoothed out and everything was going well. Living alone, I'd gotten used to wandering around with nothing on but I got out of that habit pretty quickly and it only took a few days for her to realize that the entire bathroom counter wasn't there for her skin/hair/nail/face care products. She used the spare bedroom on the main floor and I kept my bedroom on the second floor. Neither of us were late night partiers, we enjoyed the same foods and while neither of us were neat freaks, we were both reasonably tidy people. She really wasn't supposed to drink because of the meds she was on but as she said, "A drink or two's not likely going to kill me and damn I need one sometimes." so quite a few evenings were spent with the two of us having a few drinks before bed.

She quickly found that soaking in the jacuzzi tub helped with the numbness, tingling and intermittant muscle spasms she was having so it wasn't uncommon for her to go have a soak before bed if it was one of her bad days. One day, she'd been to the hospital for more tests and between the poking, prodding, waiting and blood work, she was feeling really crappy so by 9pm she said she was going to run a tub and have a soak before heading to bed. I told her to go ahead and I'd be going to bed soon myself. I was already in bed when I heard the water shut off and figured she was in the tub so I was a bit surprised when I heard her call up from the bottom of the stairs, "Could you give me a hand into the tub? I'm really off tonight and don't want to fall."

I said sure, grabbed a housecoat because I wasn't wearing anything and went back downstairs. When I got to the bathroom, she was standing by the tub and with a definite trace of embarrassment looked at me and said, "I guess there's no way to do this without you seeing me naked" and dropped her housecoat.

Yes. she was my sister and was 51 years old but I quickly realized that while there was a bit of sag here and there and her c-cup breasts certainly weren't as perky as they'd been years ago (she'd always looked great in a bathing suit at the beach), she still looked damn good naked! As easily as I could without getting either of us too embarrassed, I got one arm around her shoulders and one across her belly to steady her but realized there was no way I could properly brace myself the way I was standing so I straddled the tub with one foot in it and one foot on the floor. That worked ok except that she slipped slightly getting in and the hand that I had on her belly ended up cupping a boob before she got her balance again. I gave her a quick, "Sorry!" but she just laughed and joked that it was the first time her boob had been grabbed in a while and at her age, she was happy to take what she could get.

We both laughed a bit at that and I got her sitting in the tub. As it was, it was me that slipped next as I tried to step back out of the tub and I pretty much fell in but at least managed to not land on her. When she said, "If you wanted to join me, you could have just asked!" we both ended up laughing even harder so I said, "I might just as well, I'm soaked and you'll likely need help getting out anyway" so I chucked my wet housecoat into the sink and settled back into the tub.

Now hormones being what they are, even though it was my sister, the fact that I knew she was naked and could easily see her boobs above the waterline caused me to start getting hard so to hide it, I reached back and hit the jets. I was trying to will myself soft again but it didn't work. It wasn't a huge tub so our legs were touching and short of both of us keeping our hands on the edge there wasn't a way for me to avoid my hand on her leg or her hand on my leg. I was enjoying the accidental touching and honestly, I took advantage of it a few times to rub my leg against hers as well as touch her leg with my hand. What surprised me was that I was pretty sure that she did the same thing to me a few times.

Just to break the silence, I asked her if there was anything she'd either have done differently in life or that you wished she'd done. We'd always been pretty open with each other so I wasn't surprised when she said, "Not really but I do wish I'd gotten laid more often!"

That got another laugh from both of us and somewhat jokingly I said, "Is that a statement or a suggestion?"

All of a sudden everything seemed to slow down as neither of us said anything for a moment and then I felt one of her hands on my leg except it was a lot higher than it had been before and looking right at me she quietly said, "Have you ever thought of having sex with me?"

I'm pretty sure the look on my face gave her the answer but I still said, "Sure, what teenage guy with a sister doesn't think of that somewhere along the line?"

"I knew that, I meant more since I'd been staying here?"

Again, the look on my face must have given me away because before I could say anything she nodded and said, "So have I."

Both of us could likely have said more but instead we both shifted closer and her hand was soon on my cock and mine were each cupping a boob except this time there wasn't anything accidental about it and we both knew it. Seeing as we were both fine with where things were going, I said, "here, turn around and lean back against me."

She did and then I was able to play with her boobs and nipples with one hand while I slid the other one between her legs to feel her pussy. I was kind of surprised to feel that she was totally smooth and she must have noticed because she whispered, "I had it lasered off years ago"

As I touched her, I could almost feel her melting against my chest and after a few minutes of fingering her slit and massaging her clit, she stiffened, moaned, and quivered a bit as she came. With a whisper she said, "Oh my god that felt good. I'd almost forgotten what it was like to have fingers there other than mine."

In my best fake British accent I replied, "Most happy to be of service" and then we both chuckled a bit.

After relaxing for a few more minutes, she said, "I think we should get out now."

"Had enough of the tub already?"

"No, but I'm pretty sure you'd like to cum and we likely shouldn't do that in the tub."

I smiled, nodded and we got back out of the tub and dried off without either of us slipping. Her bedroom was just across the hall so we headed there and she lay back on the bed. She was right that I wanted to cum but I wanted her to cum again first so I moved close enough that I could start touching and fingering her pussy again. After a minute or so of that, I changed my mind and moved so I could run my tongue slowly up her slit and over her clit.

That got a quick intake of breath, then "oh fuck" followed by, "please don't stop"

I really didn't have any intention of stopping unless she told me to so I happily went back to licking, kissing and tonguing her pussy until she finally came again. Some of the women who were my age or older that I'd had sex with over the last few years had said that they needed extra lubrication because they were a lot drier that they used to be but that certainly didn't apply to Joan because as I ate her, I could feel her pussy getting wetter and wetter. When she'd finished cumming, I moved up beside her with the thought of fucking her or at least getting some head but as I moved, she put her arms around me and pulled me close for one of the hottest, least 'sister-like' kisses I'd ever had and told me that she'd always loved being eaten but neither her husband nor any of her boyfriends since had been too keen on it. After a few more kisses I said, "Well, now what?"

Joan must have known what I was thinking because she smiled and said, "Your call. I've always enjoyed sucking a guy but tonight I'd really like to feel you slide inside me and then fuck me til you cum and maybe I can cum again too."

There was no sense in arguing with her logic so I moved over her and she spread her legs to give me access. I loved having sex but knowing that it was my sister's pussy that I was sliding into made it that much hotter. As I started to slide in, she whispered, "you'll have to go slow, it's been way too long."

I'd already felt how tight she was and was giving her short, gentle thrusts, each time going in a little further until I was all the way in. I knew I wasn't going to last long but I really wanted her to cum one more time before I did so I reached one hand between us to massage her clit and leaned forward so I could suck on a nipple. The extra stimulation did the trick and when I felt her pussy contracting on my cock, I quit trying to hold back and erupted inside her.

When I looked up, I got concerned when I saw a couple of tears on her face but Joan just smiled and whispered, "Thank you... that was exactly what I needed!"

I could have gone back to my bed but when she rolled over and snuggled back against my chest, I knew she wanted me to stay so I put an arm around her and held her until we were both asleep. The next morning was a little awkward at first then Joan rolled over, looked at me and said, "I know what others would think but are you ok with what we did last night?"

I didn't even have to think before saying, "I'm very ok with it and if it happens again, I'd be fine with that too."

The smile on Joan's face told me she was hoping that's what I'd say and without another word, she shifted so she could lick and suck the head of my cock. It didn't take me long to get hard and I quickly found that she gave an awesome blowjob. With her fingers around the base just stroking the last inch or so and the rest being sucked in and out of her mouth, it wasn't long before I came and with another smile she said, "I think I'll go grab a shower while you make some tea."

"Before I do.." and when she looked over at me, I put my arms around her and gave her a long, hot kiss followed by several more before I got up.

That was the start of a huge change and it became the norm for us to share her bed or mine upstairs and have sex on a regular basis. Sometimes one of us would just get the other off orally or with fingers and sometimes we'd spend the whole evening in bed until both of us were too tired and satisfied to move. About the only position that didn't work well for her was riding me because her legs got weak too quickly but she loved kneeling and resting her chest on a pillow so I could take her from behind, bent over the bed or on our sides with her curled up against my chest so I could fuck her slowly and deeply until we both came.

It was one of those evenings with us curled up together and my cock sliding in and out of her pussy that it happened. We'd been going at it that way for a while, had slowly sped up and now she was thrusting back against me with every stroke. We both must have pulled away a little further than usual and when we came back together, instead of her pussy, the head of my cock ended up in her ass. She let out a quick, "owww" and as soon as I realized what had happened, I froze. After a few seconds, she said, "I know it was a slip but I wasn't expecting you there. It's been a really long time since I've done it but I used to enjoy it occasionally. There's some lube in the drawer if you're interested."

Go figure, yes, I was interested so I eased myself out of her, grabbed the lube and spent the next couple of minutes massaging her pucker with a well lubed finger until she relaxed enough for the tip to slide in. After adding a bit more lube, I eased that finger all the way in and when that was going easily, I added a second one. When I whispered, "are you ready?" she whispered back "I think so but we won't really know until you try!"

Gently, I eased my fingers out and replaced them with the head of my cock. With the lube and fingering, the head went in much more easily than it had when I'd first slipped in. I'd had anal with a few other women so I knew to stop there for a bit before going any deeper. When she started to push back a bit, I knew it was ok and slowly worked the rest of my length into her ass. The first time we'd had sex, I thought her pussy was tight but damn, her ass was twice as tight and gripped my cock all the way in and all the way back out. I could feel her shift a bit and was pretty sure she was rubbing her clit but I still came before she did and shot stream after stream of cum into her ass. As I softened and slid out, I gently rolled her toward me, turned a bit and took over rubbing her clit plus started licking and tonguing her pussy which brought her to orgasm in the next couple of minutes.

We lay there for a bit before she finally said, "I wouldn't want to do anal too often but damn that felt just as good as I remembered it!"

We did repeat the anal a couple of times over the next few weeks but more often it was either regular sex and/or oral. A usual night would be some time in the jacuzzi with some warm up touching then off to bed where we'd either go right to fucking or if we were tired, possibly just licking/sucking each other to orgasm before crashing for the night.

This was one of those 'tired' nights and I'd just finished eating her to a couple of wonderful orgasms and after sharing a few kisses, she looked at me and said, "A few weeks ago when I sucked you off in the morning, you gave me a really hot kiss right after. There was likely a bit of cum still in my mouth, did you realize that or didn't it bother you?"

I thought for a second or two before saying, "Ya I realized it and no, it didn't bother me. You don't mind kissing me after I've been licking you and you never have any problem with me cumming in your mouth so I figured a little cum wouldn't kill me."

I could see she was thinking about something and finally she said, "What if it wasn't just a little cum?"

I was pretty sure I knew what she was thinking but still asked, "What do you mean?"

"Well...." and she hesitated for a second or two, "I've always wondered what it would be like to kiss a guy before I swallowed but neither of my husbands or any boyfriend would do it."

She was obviously didn't know that I had a bit of a kinky streak as well so she was a bit surprised when I said, "been there, done that and would be fine doing it again. I've also cleaned up a woman with my tongue after cumming in her."

I could see that she liked both ideas because she said, "Damn, I'd love to feel your tongue after sex but for today how about we go with a nice kiss after you cum?"

I was fine with that and was soon enjoying the feel of her mouth on my cock. Likely it was the thought of what was going to happen but she seemed to be putting even more effort into sucking than usual and it wasn't long before I felt the tightening that always happened just before I came. I didn't cum as much as I used to when I was younger but it was still a good-sized load. When I was done, she looked up with a bit of a questioning look so I just smiled and nodded. She shifted up beside me so we could kiss and for the first time in years I was kissing a woman who still had a mouthful of my cum. When our tongues met, I could feel and taste the cum trickling into my mouth and after a little bit, I started pushing some of it back. Over the next few minutes we kissed, swapped cum and swallowed until here was nothing left but a slight taste.

When we separated, Joan said, "Wow, I've always wanted to do that and now I wish I'd done it sooner."

I looked at her and said, "I've been thinking since the first time we played that I wished we'd done it all sooner!"

Joan just smiled, nodded and whispered, "Me too!"

"Kind of funny, I've always had a bit of a kinky streak but never found a partner that was willing to explore it and now I find my sister has the same kinky streak - kinda makes you wonder about mom and dad, doesn't it?"

Joan just chuckled and said "Ya, but I don't want to think about it too much, there is a limit to what my mind wants to imagine!"

With that, we curled up together and went to sleep. The days had turned into weeks and now the weeks turned into just under two months. By then the rehab was certainly working and one morning while we were still laying in bed Joan looked at me and said, "I guess I should be good to move back to my place soon."

I knew her well enough to pick up the bit of sadness in her voice so I looked at her for a few seconds before saying, "I've been thinking of that too. It's just a thought but who says you have to move back? We're getting along well, it would be cheaper with the two of us sharing one place, the sex is amazing and honestly, I'm really not looking forward to us not being together."

"Awesome! That was pretty much what I was thinking but didn't want to suggest it and you to feel like you had to let me stay."

"Let you? I'd love you to stay!"

With that, she threw the covers back, rolled over onto me and we were soon kissing passionately. When she pulled back a bit, she looked at me with a sexy smile and said, "I want to show you how much my physio is helping."

When she reached down and started stroking my cock, it quickly got to full hardness but it wasn't until she moved to straddle me that I actually knew what she meant. This was the first time she'd been able to get on top and ride me and what a ride it was. She started off slow and easy but once she got her rhythm she started to speed up. I was anticipating her riding me until we'd both came so I was a bit surprised when she slowed way down again and leaned forward to kiss me before asking, "Does this feel good?"

With a big grin I said, "Damn right it does!"

"Then let's see if this feels any better, close your eyes until I tell you to open them again" and with that she lifted right off me and after hearing the 'pop' of a cap, I heard nothing for a few seconds and then a very slippery hand stroking my cock. I could feel her shifting on the bed again followed by, "Ok, you can open them and see."

What I saw when I looked was her straddling me in exactly the same position we'd just been fucking in but as she lowered herself down, I could feel the difference and suddenly knew she'd lubed me up so she could take me into her ass. The first time I'd been in her ass had been totally accidental and then Joan had suggested we keep going, we'd done it a few times since but this time it was her on top and the feeling was quite different.

As she slowly lowered herself, I could feel her pucker opening to accept the head of my cock and from her moan when it finally popped in, she could feel it too. From there, even though it took a minute or so, the rest of the shaft went in much more easily. When her ass was right against my thighs, Joan leaned forward and we kissed as she started raising and lowering herself. The feeling of her ass gripping my cock as she went in both directions was amazing, soft, slippery and incredibly tight. I knew I wouldn't last as long as I wanted to, so I reached down between us to massage her clit and finger her pussy. By now, I'd learned the little signs that told me she was close and each time, I slowed down or stopped for a few seconds. When I knew I couldn't hold back much longer, I sped up and really gave her a good fingering. My timing was just about perfect and just as I erupted into her ass, she let out a long moan and I could just hear her saying, "Oh fuck yes, I'm cumming too!"

I'm sure it didn't last as long as it felt like it did but eventually Joan pretty much collapsed on top of me which caused my softening cock to fall out with a slight 'pop' that made us both giggle. After kissing some more, I looked at her and said, "Wow, I could get used to mornings like this!"

"As much as I love the feeling of you cumming in my bum, don't expect it regularly; you're a bit too big for it to be a daily event."

"Actually, I was thinking more of us just being able to wake up together and have sex, but now that you mention it..."

That got me a light punch in the shoulder followed by, "I'm pretty sure my mouth and pussy will be able to make up for any days that my bum's off the menu."

We lay together for a little bit longer before getting up to grab a shower. Afterwards, as we had our typical tea and cereal, Joan looked at me and asked, "So, how are we going to explain everything to our families?"

"Well, without any of the details obviously but how about just telling them that even though you're feeling better, you decided that you still weren't comfortable living on your own and seeing as you were renting and I owned this house, it just made sense for you to move in here. Technically, we each have our own bedroom and if any family stay over, there's still the small bedroom. We'd just have to suffer and sleep by ourselves for a night or two while they're here. We're both past the point of having kids, so that's not a problem. We'd just have to make sure we don't let anything slip when we're out with anyone."

"Oh, like a loud pussy fart and a glob of cum?"

That got both of us laughing before I could finally say, "Wasn't exactly what I was thinking - but ya, that's a good way of putting it!"

That night when we went to bed knowing that we were both good to keep living together, it felt even better when we started kissing and touching each other. Joan was so happy that her leg had gotten strong enough for her to ride me that she wanted to do it again and I certainly wasn't going to say no. As she bottomed out on my cock, she leaned forward, gave me a quick kiss and said, "Before you get any ideas, my bum's still a bit tender from this morning so this is the only place your cock's going to go for tonight."

I just grinned and said, "Sounds just fine to me!"

For almost the next 45 minutes, Joan rode my cock, varying her speed, force and depth constantly and I spent lots of time either touching or when she bent far enough forward, licking her nipples. Eventually she whispered, "I'm getting close and I want to ride you until you cum, is that ok?"

Now I'd have been stupid to say 'no' so I just nodded and it was likely only a minute or so later that I felt her pussy convulsing around my cock as she came. Even after cumming, she kept thrusting up and down until a few minutes later, I erupted into her pussy. When she felt me cumming, she leaned forward so we could kiss at the same time. When she sat back up and started moving to the side, I gently held her hips and said, "not yet"

She stopped moving and said, "Oh, you want to wait until you soften enough to slide out."

"No, actually I was thinking of something we talked about weeks ago and was thinking that you could likely cum one more time."

"I'm pretty sure I could too but you just filled me and you're getting softer.... oh, that conversation!" and with that she gave me a great big grin and slowly moved up and soon I was not only tasting her juices but the combination of hers and mine together.

Each on their own was one thing but for whatever reason, the combination of the two was even better. As I'd figured, after a few minutes, Joan came again but instead of stopping, I increased my tongue action and after only another minute or so, she came again. Each time she came, that seemed to release a bit more of our mixed cum. I'd have been fine to see how many more time she could cum but instead, she moved away but instead of laying beside me, she more or less lay on me and after simply mouthing, "Share?" when she saw my nod, she brought her mouth down to mine for a kiss to share the ultimate mix of our juices.

In less than a month, we'd sorted out what we wanted to get rid of and what we wanted to keep and we were happily moved in together. Over the next few years, we not only lived together, we also went to dinner/movies together as well as being together on vacations. I think a couple of the kids suspected that there was something going on between us but we were always able to brush it off as it being nice to have someone to do things with, without the complications of a relationship.

Of course when we were alone, there was no real doubt that there was a relationship because we'd often find ourselves curled up together watching tv and a few times we caught ourselves starting to hold hands in public. Both of us are very happy with where things have gone and we've talked about me being able to retire early and possibly move somewhere in the Caribbean where no one will know us and we can finally be the couple in public that we'd turned into behind closed doors.