Ashley told me she had a fun day planned for me. She told me to wear a tight crop top, running shorts and flip flops. Bra and panties were not allowed... After I got dressed I found she was dressed the same way. We went out to her car and took off out of College Station toward Houston. I kept asking what the plan was but she wouldn’t tell me. We got to IH10 and were about 30 minutes outside of Houston when she pulled into a truck stop. We got out and walked over to where all the 18 wheelers were. The toilets was fortunately empty and we went into one of the stalls. He spent no time at all in taking off his jeans and boxers and bent over presenting me his puckered little hole. I moved in closer, reaching out to touch him. He moaned at my touch but didn't look at me. My hand moved down and I ran a finger up the length of his crack. Again he moaned and pushed against my finger a little. I moved into him and rubbed my cock that was bulging out in the front of my pants, against him and he. Suddenly the flashes in front of my eyes were too much and there was a large flare in my brain. I could feel each of my girls connected to me and flowing through me. I seemed to disconnect from reality for a moment, and then I sort of lost my awareness for a few seconds.When I could finally focus on things around me again, I was aware that we were all lying in a mass, all cuddled together in a damp heap, each of us trembling."Shit, did you feel that, Cate?" Gail asked."Hell, yeah," my sister. It looked like one of those dressing rooms they show in movies all the time. At the far end of the room there were sinks and toilets. On the wall opposite the counter I noticed an old heating vent about a foot off the floor. When I examined it I found that someone had put a piece of wood behind the vent to close it off. I went and got a screw driver and removed the vent cover, removed the piece of wood behind it and reinstalled the vent. Then I went back around to the storage room to check out.