Here's a true story that happened to me a few years back. Call me a pervert if you want. I regret none of it and both of us have gone back to normal relationships. Every now and then we act on it, but for the most part, we just accept it as what it was.
It was Christmas time and my entire family took a trip to my grandmother's in Arizona. Everyone was assigned a room. I would have roomed with my little brother but he was put in the same room as my cousin, so I was to share a room with my older sister. No big deal, all things considered. We'd shared beds before. This was a few years ago. I had just turned 18 and Michelle was just a year and a half older than me.
The place was a ranch style house and we were given a room with a double bed. For anyone who's tried to share a double bed, it's not that easy. A queen bed you may occasionally bump into each other. A king you can pretty much sleep on your own side, but a twin, every movement you make you end up touching each other.
After a long day riding horses with the family and a heavy dinner, we were both sent to our rooms early. I was used to going to bed late night, so Michelle and I lay in bed both unable to sleep.
She looked incredible. Throughout our teenage years, I started to look at her in a new way. I often would make excuses to see her naked and masturbate later thinking about it. This night I remember so vividly. She was in bed with a top and bottom next to me. The moonlight was pouring in the room. I could see her every curve in the bed.
She was moving around in the bed and I was only getting more turned on. I decided to relieve myself hopefully without her noticing. I put my hand on her stomach and left in there for a while my left hand slowly pulled on my dick. She is a deep sleeper and didn't notice as my hand slowly worked its way onto her breast. Every few minutes I was worried she'd wake so I'd put it away, but I thought I had a built in excuse - If she caught me, I'd pretend I was asleep. It sounds stupid, but it actually worked. I moved my hand up to her nipple and kneaded her soft breast as I touched myself.
No movement. My tension only kept me going longer. After a while, I got bold and moved my hand down her dress to her trimmed pussy. I touched the warmth as I took care of myself. I must have got careless cause she grabbed my hand and took it off her, but she seemed to still be asleep. I finally climaxed into a tissue from a box next to the bed. To this day, I don't think at this point she noticed anything.
Either way, this continued the next few nights. But the problem was me. I was getting more and more careless. I would put a finger inside her and stroke myself. And I'm sure anyone reading this can guess what happened next. I got caught.
She grabbed my hand and took it away from her pussy and looked over at me. Michelle has these big green eyes and I was so confused, so embarrassed.
She whispered softly in my ear - "We can't do this." I asked her why not and we had a brief talk about incest and why it could never happen. To her, it was wrong. But she knew I was too wound up to sleep.
"You might as well finish" she said and I asked how. She thought about it and turned her back to me so we were spooning.
"Just take care of yourself. It's not that big a deal" she told me.
I took my dick out of my boxers and rubbed it against her ass through her underwear. "Is this alright for you?" I asked.
"Sure, just don't go inside me. It's not that big a thing." I rubbed myself against her ass crack til I came.
"Do you feel better?" she asked.
"A lot. Can I do anything for you?"
"No, I'm just helping you out. You Just did what you had to do. I don't want to even think about it."
The next day I avoided her for a while. When the family was playing board games, I went outside and just watched the moon. After a few minutes, Michelle came out to meet me.
"You ok?" she asked.
"Yes. I was just thinking about last night."
She laughed in her own strange way, reflecting on what happened. "Don't worry about it. But we can't make it a habit. It's just the circumstances. I'm sure you do that all the time. We just happen to be sharing a bed." I agreed with her and gave her a hug, thinking about what might or might not happen that night.
After all the family stuff, the night finally did role around. I got in bed next to her. I started the same as the night before, touching her right breast and playing with her nipple. She turned around to me and looked me dead in the eyes. "Don't think I don't enjoy it, but I really can't. I'm sorry. Try to sleep. If you need to take care of yourself, go to the bathroom. I don't feel right about last night." I assured her I didn't either and after what felt like an eternity, she feel asleep while I was still writhing in a delirious state of male testosterone.
We somehow worked ourselves in a spooning position and I rubbed myself against her ass crack again through both our underwear. I pulled my dick through it so it was against the silk of her panties. She didn't seem to notice, so I went for broke. I pulled her silky underwear to the side and rubbed myself against her bare ass. She didn't seem to notice.
After a few minutes of rubbing against her, I felt my orgasm building up. It was only a matter of time before my gyrations woke her up. She looked over at me sternly.
"I know I let you do it before, but I don't feel comfortable with it."
I begged her to let me finish and she lay there basically giving me the silent treatment as I rubbed my dick up and down her ass crack.
"Mike, please stop. I feel very wrong about this." But of course I couldn't stop.
"I'm almost there. Please let me finish."
She sighed and thought it over a second. "Just hurry and do it." I moved my dick down to her pussy and entered her. She was warm and moist. I guess this was turning her on. I pounded for a few minutes while spooning her. I managed to push her silk panties down to her ankles."
"Ok, that's enough." She moved to her back and pulled her panties back up. I gave an overexaggerated sigh. There was no way I could sleep after that.
Evidently, neither could she. We started talking about everything. I asked her about masterbation and what she had and hadn't tried. The talk only got me harder and more at ease, but she kept telling me that we couldn't do anything more.