This is Chapter 7 of this story. I will label them more clearly from now on, my apologies for the unclear titles. The other stories, in order, are:
1. Seeing my Sister
2. Bob sees his sister's body
3. Bob Discusses things with his sister
4. Bob and Becky get comfortable again
5. Becky likes to watch
6. Bob and Becky watch each other
Please let me know if I should continue this story.
thanks!
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I sat and stared at the television, pretending I hadn't just masturbated while looking at my sister doing the same. The thought was surreal, it seemed impossible. It also was incredibly erotic – I was getting a hard on very quickly again, even though I had just gotten myself off. Fortunately I was in loose track pants, sitting on a couch. I could adjust myself to make it unnoticeable. If Becky was having any of the same thoughts it certainly didn't show. I kept stealing glances at her.
"What?" she asked me after the fourth or fifth time I peeked at her.
"Nothing." I said. She looked at me. "Oh come on!" I protested, "we just got off in front of each other. This isn't 'normal!'"
"So...you regretted it immediately?" she asked me.
I just stared at her. I thought about the question. "No, actually, now that you ask me that, I really don't regret it at all." I said to her.
"Well, neither do I. So stop being a weirdo and watch the television instead of staring at me." She replied, looking visibly relieved.
I felt relieved. I didn't regret it. It felt good and she is so beautiful. In fact, I really liked it. I had an erection to prove I liked it! I leaned back in the couch, causing my erection to tent my track pants. It was hard to miss. Becky spotted it at once, as she looked at me to see if I was relaxing yet.
"Oh my!" She said. "I thought men couldn't do that again so quickly! I mean, get hard again after they orgasm."
I laughed. "Well, it depends on the man, it depends on the situation. This situation was incredibly hot and sexy. It feels so...I don't know. Dirty? Something like that. You know what I mean? Because it is so taboo, because we shouldn't be doing it, it makes it way more exciting."
"I completely agree." She said, but her eyes remained on my tented track pants.
I watched her while she looked at me. She really was beautiful! "How exciting do you think the situation is?" I asked her. "I mean, you can see the measure of my excitement, I can't see yours." I didn't really know what I wanted here, but I know it involved her taking clothing off.
She pulled her gaze away from my crotch and looked me in the eye. "What do you want? Do you want to do that again? Are we going to do it often from now on?"
We looked at each other for quite a while, both of us considering. Finally I stood up, my tented track pants sticking straight out in front of me, terribly obvious to Becky's eyes, which were just about at the same level. "Well, I'm going to bed, and I'm going to masturbate and think about you and your body. If you would like to come with me, then do so. If not, I will respect your decision. But I'm going upstairs to get naked now."
Without waiting for an answer I walked up the stairs to my room and, leaving my door open, stripped out of all my clothes and laid down on top of my bed. I reached into my bedside table and got out my massage oil. When I looked up, Becky was in my room, pulling her shirt over her head. She had closed the door. I watched her as she got naked and climbed on my bed. She climbed over me, but was careful not to touch any part of me. Then she sat down and looked at me. Starting at my feet she moved up slowly, as though inspecting something she was going to purchase. When she got to my penis she looked at it, changed her angle, tilted her head, trying to see it from different perspectives. "Why does it bob like that?" She asked me.
"Well," I replied, "when I am really hard like this it bobs in rhythm with my heart beat." I hesitated for a moment, then said, "Would you like to touch it?"
Her eyes darted up to mine, then back down to my penis, then back to my eyes. She was clearly considering this. "Do you think that is wise?" She asked, "I mean, won't that push us down a path we might not want to travel?"
"Well, I'm not suggesting you suck on it, or I put it inside you," I said, she gaped at me. I laughed. "That's fine. I'm going to get off, I just thought you might want to try it, but obviously not. You can watch."
"I didn't say I didn't want to!" she protested. "I just have reservations. Plus I have no idea what I'm doing. I watched you pull it yourself, and I watched Sheryl suck on it, but I don't know what I'm doing."
"Well here is your golden opportunity to learn!" I said, fully controlled by the horny teen-age boy side of myself. I took her hand and wrapped it around my penis. I held her hand like that for a while, unsure if I let go if she would continue to hold it. She just stared at my hands wrapped around hers, wrapped around my cock. Eventually I let her hand go, and she kept it wrapped around me, much to my relief.
She tentatively squeezed it, then she lightly stroked me up to the top where she took her hand off and felt my cock head. Using her other hand she pulled my penis up toward my belly and looked at the underside of it, then down toward my legs and looked at the top of it. With her right hand she made little jerking motions, and with her left she gently touched my scrotum.
"Mmmm, that feels nice." I said. She looked at me.
"What does?" she asked, "the jerking or me touching your balls?"
"All of it!" I said. "but here, if you're going to jerk me, do the whole length of it, especially get to the top, the head and the area just under it are most sensitive." I once again put my hand around hers and jacked myself. This was incredible. It felt really nice, and the idea that I was jacking myself with my sisters hand around my cock made it even more erotic. I let go of her hand and she kept jacking me as I had showed her. I looked at her body. Her breasts swayed back and forth as she worked on my member. I reached out and pinched the nipple of her right breast – not hard, just enough to make sure she felt it and could object if she didn't want me to do it any more.
She inhaled sharply. "What's wrong?" I asked.
"Nothing, I just didn't expect my nipples to be so sensitive." She replied. "Don't pinch too hard, I think that would hurt."
That was all I needed. I had an invitation to touch – don't pinch but touch – the breasts I had been lusting after all summer long. I put my hand around her whole right breast. It was so different than Sheryl's small, firm breasts. I lifted it and felt the weight in my hand. I lightly traced around the end of her nipple with my finger. Her nipples were huge, my first estimations of their size were underestimations – as her nipples grew harder and jutted out from her areolas they grew longer and became thicker. I leaned over to get a closer look, laying almost on my side now. Becky adjusted her grip and continued jacking my cock with one hand while her other hand explored my scrotum.
She was clearly responding to what I was doing to her nipples. "Oh jeeze, Bob, that really feels nice. Keep doing that!" I was not going to argue. I continued tracing around her nipples, marveling in their size. They were almost as big as my middle finger up to the first knuckle. They were tantalizingly close to my mouth, but I didn't want her to freak out and stop jacking me.
I rolled back onto my back and savoured the sensations of having Becky's hand gripping my cock and stroking, with her other hand rubbing my balls, or touching the head of my cock. I put my hand on her leg and stroked her inner thigh. I pushed my hand up and felt her closely trimmed pubic hair, fine and wispy. I felt the top of her slit and rubbed across the little hood there, just like Sheryl likes me to do. She responded instantly by gripping my cock harder and moaning a little. I pushed a bit further down, and felt her wetness, but this was very awkward and I could not continue. I went back to touching her breasts.
She leaned over me to look closer at my cock head, which was an angry purple. I could feel her hot breath on my cock as she breathed open mouthed. I realized how close her mouth was to my penis, and that sent me over the edge.
"Oh fuck, I'm going to cum." I moaned as I very lightly rolled her nipple between my thumb and index finger. "Becky, I'm cuming!"
She either didn't think about it or she didn't care. My cum erupted from my cock and hit her in the face. It was a good thing I had cum just a short while earlier, there was not so much volume this time. Nevertheless, my cum was hanging off my sisters forehead and nose, and she didn't seem to mind. She kept on pumping my cock. Eventually I was too sensitive and I held her wrist and stopped the motion. She looked up at me and said, "That was incredible. It wasn't gross at all like I thought it would be. Your, uh, stuff, hitting me as you grunted and thrust your hips up, wow, that was really hot."
She hopped off the bed and cleaned her face off with Kleenex from my desk. She then returned to the bed with Kleenex in hand and carefully cleaned all the cum off my penis and belly. After throwing away the soiled tissues she hopped back onto the bed.
"That was definitely the horniest thing I've ever done!" she said. "And the dirtiest. I guess I didn't do too badly, considering you came."
"Nah," I said blithely, "it wasn't so bad."
