Tammy did the same to Jen, and I stared outright as their two naked bodies embraced and they made out in front of me. I was vaguely aware that my towe... was feeling very heavy against my straining erection.Jen turned to me and smiled. She walked three steps to me, whipped off my towel, then grabbed me by the shoulders and pushed me over to the bed and down on my back. "Come here Tammy," Jen said while pushing me back further so I was lying completely on the bed on my back, "why don't you help me. I step one foot over the hose so it's between my legs as I symbolically hump my car. You giggle and reach over and begin slowly stroking the gasoline hose as we grin at each other. I point over to the far side of the parking lot where the big trucks are parked and lift an eyebrow in an unspoken question. You nod, and we get into our cars and drive across the Tarmac to a deserted, dimly lit part of the truck stop. We get out, I open my arms and you step into my embrace. You are shorter than I,. I felt my pulse beating in my throbbing cock and stood up and pulled my shorts off exposing my cock to my sister for the first time. She said, wow thats big. It really wasnt but it was the first one she ever saw. I laid on top of her between her legs and told her we were going to try something. I placed my cock in her pussy ans tried to get it in. She said that it hurt and grabed my dick and guided it in her. Luckely, because of how much I ate her pussy my cock started in very easily. I started. " OK. I'm going to catch up on my sleep. Maybe I can get some work done when we get home." What work do you need to do?" My counselor wants to see a battle plan of how I want to finish this year. It's due Monday. I just did a little bit when I was sitting on the bench during practice before Coach made me put it away." All right. Get some sleep. Maybe I can help when we get home."I took Jack's arm in mine and scrunched up against him. I closed my eyes and felt the vibrations of the drive through.