Massaging my partners nonidentical twin-sister into oblivion. [m>f]

A little back story. Partner comes from a home where the women are extremely open. Yes they talk about sex and dildos and all kinds of weird things with each other and their own mother. They also go family skinny dipping. Back story on the twin. They are not identical, but are extremely close and competitive. They are quite "revealing". Will sunbake topless at beach. My partner only at secluded ones with less people to bump into. Her sister does it anywhere. Even at home by the pool. She also likes to show off her ass with a thong. That's a thing. I had seen her naked before this point. She walks out of the shower with a towel, sometimes she forgets it. I am positive she does it on purpose… who knows. Plenty of stories. She is really comfortable in her own body and she is hot too, which helps. (I wrote this bit after)

She (partners sister) decided to do one of these mud challenges the day before and knew that I had some experience in massaging her sister. Apparently word got around between them about how good I was a massaging (which is pretty weird, considering those massages are usually very intimate). I was like okay. She was staying at our house because she lived so far away from the mud race thingo (endurance freak of nature gets down and dirty to prove a point on how fit they are). My partner was at work for the day.

I told her it was fine, I would massage her. I didn't know what type, because she was my partner's sister. I pulled out a massage bar that smelt of vanilla and chocolate and a bit of emu oil, Put some towels down over the guest bed she was staying in and asked her how she wanted to do this, where she was sore. Apparently everywhere. "Okay," I think and tell her to shower first, she already has but goes to the bathroom and comes back with a towel on. I expect she has something underneath.

She lays down and pulls the towel out from underneath her and pulls it down her back. She then looks at me with a nervous smile.

'Um, is it alright if I take the towel off and get a full body.' she says with a wince.

'A full body?' I ask.

'Don't worry about it.' she says quickly.

'I will do what ever you want, if you want a full body…'

'Yeah, it is just that my bum cheeks and thighs, everywhere, pectorals, you know…'

'Fine, take it off, full body we go but don't tell your sister, it would be awkward.'

She takes off the towel and my eyes are shocked. I thought she would have on a bikini bottom or g-string at the least. She actually meant full body. I get to work. Start with her back and shoulders, neck. Always the easiest. I am going at a decent intensity. And then she ask.

'Can you do the chakra points thing.'

'What doesn't she tell you?' I ask.

Chakra massage is just some crap I do to release tension in certain areas of the body that help in the relaxation and effort for a full body orgasm. This is intimate knowledge. I get back to work and start digging under her shoulder blades. She squirms with the pain, and I tell her every point will be painful with these areas. She gets used to it quickly. Eventually I am done with the back and I am at the point where I need to do her glutes. I am looking at her ass now. It is smaller than her sisters, but quite tight and round like her sisters. It is a nice ass, but I wipe the thoughts aside and push my fingers into her glutes.

'That feels so good,' she says making me feel very very awkward.

I avoid the inner regions because I don't want to feel anymore awkward and go straight for the legs, she spreads and my mouth goes dry because I am looking at a freshly shaved vagina of my partner's sister up close and personal. Fritty Pucked Up right here. Yes I saw her ass P….. ;P.

'Ummm, you kinda miss a bit, don't worry I won't say a word and it is okay,' she says and points to her ass.

So I get back to massaging the inner regions and end up brushing against the naughty zone many times over. Every time I am filled with red, as in blood rushing to my head pumping in my balls. This is not a good situation. So I get back to the legs as soon as possible and eventually hit the feet. I tell her that she needs to turn around as it is easier to do the feet when she is lying on her back. She flips over and I see her in her full glory. Her streamlined fit but curvaceous body. Narrow waist, solid hips. He breast a B cup borderline C, a shaved vagina. She's pretty hot, if I do say so myself. So I pull it out and bang her. Nah I am kidding. Anyway it is time to massage the feet.

I begin to massage the feet and hear her make funny noises. I look up and see that her breast are erect and she is laying back with her eyes closed. The blood rushes in and I have a half-chub. She at this point is grabbing the towels and starts to make very quiet moaning noises. I ask her if she is okay, and she tells me to keep going. I watch her as I massage her feet and every so often she grabs her breast or pushes on her vagina. I drool on the inside and see what I can make her do with this foot massage. I get more into it and intense. Rub a bit harder. She looks down at me and tells me to suck it.

'What?'

'Just do it. My toes'

She clearly has a foot fetish or something I guess. But I can't help my desire to see her orgasm. I put my mouth over her toe and suck it. Lucky it was clean, I wasn't really into the foot thing myself. I am looking up at her face, she is grabbing her nipples hard, and then she lets loose a moan, tightening up her feet, as I let go and she orgasms right there.

'Sorry, she says, you don't have to finish if you don't want to.'

As I was awkward enough and light headed a bit for some reason I said, 'It's okay I can finish. So I started massaging around the shins and moved my way up.

By this point I had a hard on. She was ticklish around the inner thighs and squirmed a lot. I could see how wet she was too and only getting wetter. I moved to the arms and hands, fingers, shoulders and then I was back again at an awkward place: The Breast. Chakra time. My hands shook as I held her breast and paused for a brief moment before she asked me what I was doing. I clicked back to reality and massaged her breast. Breast are nice. Hers were nice and she could not help it. Once again she closed her eyes and started moaning. She didn't come and I left her breast and went under her ribs which made her squirm with a bit of pain. She bit her lip and I thought there was no limit to her sexual desire. So finally get to the groin and final area. The pubis and the Vagina area.

'Are you comfortable with this,' I ask stupidly.

'Are you really asking that,' she responded with a light laugh.

I got to work massaging the pubis and the vagina. She was so wet and it was hard to avoid her juices as I went around the edges. And then I am done.

'Finished,' I say.

'No you haven't,' she says.

'What now?'

'Finger me and teach me how to squirt.'

I was so erect right now and just said "okay but not everyone can". I slid a finger in her vagina and pushed on her g-spot. She moaned.

'I have never squirted before,' she said through dashed breaths.

I told her that she needed to relax as I pulled her legs back above her head, told her that if she felt like she needed to pee she just needed to let it go. So I kept on fingering her, putting my two fingers in deep now and pulling up wards as fast as I could.

'O fuck, I need to pee,' she said, 'are you sure it's not pee.'

'Just let it go.'

I just went harder, pushing on her pelvis with my other hand. She began to squirm and moan really loudly. Then she came. She came like a tap that's washer had just broke. I pulled my fingers out as she sprayed three times, then I put them back in as her whole body began to shake and went hard again. She gushed all over my hands, I pulled out and let her spray again, she kept on coming and telling me to stop and go all at the same time. I went in once more and this time she really exploded. She looked like she was in the exorcism as her limbs convulsed all over the place and she moaned (more like high pitched squeal this time) until her voice silenced to a whisper. I let her go and she lay there with her chest puffing in and out. She had scratches on her tits, I hadn't paid much attention to how hard she was grabbing them.

After I let her lay there for a few minutes, she opened her eyes, 'My sister is right you know, your hands are godly.'

'Shit, now I feel…'

She cut me off, 'don't, she wanted this to happen so I could be jealous.'

'Bullshit.'

'That is how competitive we are, don't worry this is one time thing.'

Anyway, skipping the boring details. It was true my partner came to me later and told me that she knew and had set it up and was glad that now her sister would know how good I was with my fingers. It was pretty fucked up. I got over it, as you do. I did ask the incest thing in a sneaky way, glad I found out they didn't do anything except talk about things and taught each other about masturbation when they first discovered it – they said that was normal for twins. I still think that is a little weird. Oh so anyway, later that night I got mine, as in had sex with my partner. Didn't last as long, either did she – she was really turned on now that I think about it. Damned competitive.

Source: reddit.com/r/gonewildstories/comments/34e0fb/massaging_my_partners_nonidentical_twinsister