Then back out and in as the horse found its rhythm fucking her getting faster and harder than she thought possible the way it throbbed and pulsed was ...mpossible to describe. It felt as if every nerve in her cut was being touched by the huge cock and the fact that its size made it impossible for her to tense only added to the sensation. Finally the horse thrust deeper and started to cum she felt the first hot wave of fluid pump deep into her each pulse felling her deeper and deeper till she felt. She knew this and became jealous of the attention my dad and I gave to this older woman. Even in my sister's most beautiful years - age 16 or 17 - you could see clearly in a photo of them trying on skirts that Anne had a much rounder, fuller figure, her long dark brown hair flowed gracefully down over her breasts. She is slender, yet her breasts and hips are round and full with softness and that beautifully tender skin. When Anne was downstairs talking on the phone with that sweet sexy voice,. That you... are my bitch!" Serena said and pushed her cock balls deep inside me.I felt Serena's cock pulse inside my ass and i felt her make her ograsmic thrusts and came hard inside my ass.I felt her lean her body on my back and wrap her arms around me. "You are such a good sissy you know that" Serena said. "I'm your bottom bitch" I panted. "I know what you want. you're still horny" Serena said and felt my small hard dick. Serena took off her shirt and pulled her cock out of me.Serena pulled. I had never seen a gay couple having anal sex before and I was riveted – it wasn’t like real life, more like watching a video! The big guy came quickly and shot off over the other guys back. Then, to our surprise they both started walking toward us. I had not realised but both Glen and I both had huge erections – which could have given the wrong impression, I suppose. The big guy said “hello lads, did you enjoy the show? Your turn now”…….I had that feeling of terror and excitement – like.