This story happened several years ago when my sister Jenn and I still lived at home.
My family has always been very close and open. Jenn and I have always been able to talk to our parents about anything. My sister and I are also closer than any siblings we have ever known, she isn't just my sister, she is my best friend. I guess part of our closeness is because we are only 11 months apart in age. We shared a bedroom until we were about ten, our parents tried several times to give us our own rooms but we didn't want to be separated. Eventually they made us separate. "You two are starting to grow up. Boys and girls need their own space." They told us on the day they made us move into separate rooms. We both cried for several days. After that either Jenn would sneak into my room or I would sneak into hers and we would sleep together. We needed to be close to each other. Eventually our parents found out. We told them that nothing ever happened and that the door was open so they could check. I don't guess they minded. They never told us not to sleep together.
In our family room we have three love seats around a big screen TV, set up so all seats have a good view of the screen. One day the four of us were watching movies. Mom and Dad on one love seat, Jenn and I on another. Dad and I had been out of the room for a few minutes getting popcorn and drinks. When we came back Mom and Jenn suddenly stopped talking. There was a very loud awkward silence in the room. Dad and I just stood there looking at them.
"Care to share what you two girls were talking about?" Dad asked.
"Nothing. Just girl talk." Jenn said.
"Just girl talk huh? Jenn your face is beet red I have never seen you blush like that. Must have been some girl you were talking about." I said as I sat down next to Jenn. As soon as I sat down Jenn punched me really hard.
"Shut up David." Jenn was still red and really wanted to forget this and get back to the movie.
"Jenn just asked me what a penis felt like." As soon as Mom said this Dad started coughing on his drink.
"MOM!" Jenn was turning an even deeper shade of red. I would have probably been laughing at her if I weren't in shock at the subject.
"Well what did you tell our precious daughter?"
"I told her that there were two penises in the house and to ask one of you to let her touch. She got embarrassed and said she couldn't ask her father or brother to touch them there. Then you two came back. Would someone pass me the popcorn please?"
I couldn't concentrate on the rest of the movie. My parents were snuggling close together and for the next 30 minutes of so Jenn couldn't get far enough away from me on that loveseat. Eventually she relaxed again and sat the way she usually did, sideways with her feet either against my leg on in my lap. When the movie was over I said my goodnights showered and went to bed. I couldn't stop thinking about Jenn touching my penis. I had never thought about my sister before. I knew she was very pretty. She has a very lean athletic body; the two of us often go to the gym together or do laps in the pool. While I was in the shower I masturbated and came thinking of Jenn fondling my dick as I played with those small boobs of hers. That was the first time I had thought about Jenn that way, but not the last.
I woke up sometime later with Jenn spooned up behind me. We rarely touched much in bed unless one of us is really upset then we would hold each other until we feel better. This was different. I could feel her bare tits on my back.
"Jenn are you naked? Why do you have your boobs pressed against me?"
"Can we talk?"
" You need to put your tits on my back to talk? Is this about touching my penis? Is that why you are naked? I don't think we should. Maybe you should get a shirt on, and come back to bed." I didn't want her to go. I wanted really bad to touch her boobs, but knew I shouldn't.
"I will if you want me to but I want to tell you what happened first. I just came from Mom and Dad's room. I did ask to touch him. I really liked the way it felt. He let me take my time and answered questions as I stroked him and fondled his balls. Dad really has a nice sized penis. It was fun."