Then the knot popped out of me. But as one dog left, the other took his place and immediately mounted me. And just as with the first dog, this one mad... me gasp at the sudden and quick penetration of his cock and the persistent and frantic pounding he applied to his fucking. The inevitable surge and sensation as this cock grew in length and size. Growing noticeably inside me, filling me more and more and reaching deeper and deeper. What a marvelous cock dogs have that they do this. Not just the. I was born as Mark, the youngest of three children. I had an older brother Ted, and an older sister, Kate. You might wonder when I knew I wanted to be a girl. That would be a hard question for me to answer, because in my heart, I always thought of myself as female. I don't ever remember wanting to play with Ted's Tonka Trucks or building blocks; it was always Kate's Barbies and tea sets that interested me. But it went far beyond a matter of play. I saw the bond Ted had with Dad; I thought that. The door wasn't fully closed so I pushed it a bit open to see what was going on. I was so shocked to see Mary laying back moaning and graoning with this other woman between her legs. I just stood there watching them pleasuring eachother. Kate I'm so ashamed to say I was turned on by what I was seeing,,very turned on. Oh god Kate my cock was so hard I just had to rub it. The sight I saw was this really sexy ass, wirggling around a wet hairy pussy glistening in the light as she licked Mary to. He pumps Brent for a full ten minutes using the cum already inside Brent for the lube he needs to not cause too much tearing. As Tank gets close to shooting his seed to breed this new bitch, he begins to jack hammer the ass and everyone can hear his hips slamming into Brent's ass and the whimper from Brent as he takes a full force r****g in front of the whole cell block. After he dumps his load, he pries open Brent's mouth and makes him lick it clean. The rest of the day is spent taking one.