I said I will set up David's room for him and went to turn back the bed, I put the side lights on as well as the main centre light, got a nice parting...in the curtain, just enough for a discreet peek through. I came back and said Goodnight I was going to bed, Show David his room on the way down, Yes they said we are all going now, I heard them get up to go, I sneaked out the back door and went to his window, Yes! again I had perfect vision, I heard them come to the room and she followed him in,. It seemed that I was usually the one on the bottom, much to my dismay. Not that I didn’t enjoy having Jess on my chest, but god damn how much better it is to have my head on hers! We also occasionally fingered each other to orgasms through the day, maybe five or six times. Nothing drastic, just a light fingering. We were trying to save up as much sexual release as possible for our “pee bath,” but it was damn hard to not get each other off while we’re lying naked on top of each other! And after. I laid her gently down and moved to the foot of the bed to look at her. My sisters nipples werestraining to break through the thin sheer fabric of her bra, her belly rose and fell from her heavy breathing, and a small damp circlehad formed on her panty's. My sisters plump pink lips were clearly showing themselves to me. I pulled my tshirt over my head andpushed my shorts over my hips, finally exposing my body to my sisters eyes. " Oh my God Tim what are we doing?" Kathy started to sayas I moved. He led me over to their table, where Lisa sat alone. She politely shook my hand and smiled sweetly as I took the seat next to her. A DJ played loud music on a small stage in front of a dance floor, which was populated with a small handful of mostly-female dancers. I strained to hear Dan over the loud music from across the table. He was talking about motorcycles again while Lisa sat and quietly sipped her fruity concoction.I had a great deal of difficulty connecting with her. She would only.