I turned the knob 1click clockwise and instantly jumped. When I landed I was still alive but my pussy was certainly tingling a lot more, my body was s...aking like hell and I was gasping for more air whilst saying lots of ‘ooooh’ and ‘aarrgggs’. The other strange thing was that I heard a bell ringing; not loud but loud enough to know that I’d heard it. I decided that I’d have to experiment later.My spare hand went to one of my tits and squeezed what little there was. It was like the electric. Paula sat down in the lounge chair next to me and intently watched as I worked the lotion into her sister's back. Lynn was face down on the lounge chair as I unhooked her bathing suit top to spread lotion all over. Paula was staring at my hand as I liberally spread out the lotion and rounded Lynn's sides slipping my fingers along the sides of her breasts. Lynn propped herself up on her elbows allowing her boobs to dangle freely with her nipples scrapping the chair. I fully cupped her breasts. I swear I thought is shaft was going to come out through my belly button! This motherfucker is huge, and what's more, he knows exactly what to do with it! He pulled out of me, leaned over and hoarsely said to me "Hang on to something bitch," then without warning, slid his cock into my ass. I was so fucking wet that we didn't need any lube whatsoever. I yelled out as he viciously thrust himself farther into me, holding on to my hips, so that he could better pump himself into me. I'm moaning and. She knew he was far to excited by the situation to refuse any commands she made of him. "Turn round and put your hands behind you," she ordered. He obeyed her command with out a moment hesitation, hands stretched out behind his panty clad arse. Picking up a pair of pantyhose she bound his arms, she then pushed the sissy down to his knees, lifting his petticoat exposing his panty clad arse. She drew back her leg and kicked him in the balls .He screamed in agony on the floor. All excitement gone.