Jessica adjusted to try to get more comfortable and I could feel the crack of her ass lightly trace my cock. I know she didn’t intend for it to do so, she was just too innocent. Plus, she and I didn’t have that kind of relationship; she looked at me like her older brother. How could I betray her trust?
So I tried to focus and closed my eyes to get some sleep. It had been about ten minutes, but the warmth and softness of her body against mine was too distracting. As she relaxed more, her body melted into mine; the closeness felt amazing. The bumpy motion from the highway was creating this awkward friction between her ass and me. My cock was getting harder and pushing up along her crack toward her pussy. Luckily the tension in my shorts was keeping my cock from pressing fully into her crack, otherwise, I’m sure she would feel it. I needed some distraction or I would go crazy.
“Lily, you there? Could you turn up the music? I can’t reach the radio,” I asked.
“Yea sure Charles, aren’t you tired? Is Jessica asleep?”
“I think so, but I’m having trouble dozing off… just needed some noise, you know? Little louder please.”
“Ok, sounds good, don’t be afraid to wake Jessica up if you need to stretch or anything.”
I could barely hear Lily over the music, so I just reached over the TV and lightly placed my hand on top of her head in thanks.
I tried to focus on the dance music, but honestly, it was getting me even more riled up. I closed my eyes, but that only accentuated my other senses. With the beat of the song, my head being a little foggy from exhaustion, and the warm ass grinding against my body, it kind of felt like I was at a club. I opened my eyes and immediately noticed her long perfectly smooth legs. Her hands had fallen to either side and the thin dress she was down holding in place was now riding high up on her thigh. Her left dress strap had also fallen off her shoulder, making her perfect cleavage even deeper. My cock was almost completely hard, and the pressure buildup felt like I could explode.
“Jessica, are you awake?” I whispered.
No response but the soft, steady, up and down of her chest.
Shit, man, she’s your sister-in-law! I tried to gently readjust myself so my cock wasn’t pressed so closely along her pussy. It already took all my will power not to grab her juicy tits with one hand, hoist her up with the other, and fuck her right here. I closed my eyes again. After a few more minutes of this, all the friction, body heat, and pressure added up, and I couldn’t think straight anymore. My body started acting on its own.
First, I glanced again toward Lily to make sure we couldn’t see eachother. Second, I looked at Jessica to make sure she was asleep. By her steady breathing motion, I knew that she was. I gently set my right hand on her right thigh. God, her skin was so soft. I lightly wrapped my left arm around her skinny waist and pulled her tight against my body. Jessica stirred slightly, and I quickly relaxed my grip around her waist. She relaxed again and slumped her body against me. I held this position with my arm around her waist, and my hand on her right thigh for awhile, just enjoying the feel of my wife’s younger sister pressed against me. I used my left hand to softly massage along her flat stomach, slowly rising higher and higher until I reached her underboob.