"I slowly drove it all the way in. Her hot snatch convulsed around it while she gave a fresh whimper with every inch. Her pussy felt glorious around m... cock and I knew that I was feeding her my pleasure just as she was feeding me hers. Her excitement grew and she began grabbing my cock with her pussy. It felt like she was trying to lock it inside her but she was far to wet for any kind grip.I wanted to pound into her like a jackhammer but kept myself at a slow methodical pace. I concentrated on. It dawned on me. She must have learned this recently! Somewhere,someplace, someone had taught her how to do it. Someone else had shown mywife the joys and pleasures of anal sex! There was no hesitation in hermovements. Careful, deliberate, smooth, effortless, no mistakes. Even whenher finger slid over my prostate, my was totally oblivious to the dribbleof pre-cum oozing out of my massively hard cock.Suddenly I started to cum. I don't know how it started, where it started,or how it started. All. Sometimes they waited years before their parents made up their minds. The blue-ribboned pupils often envied the pink-ribboned pupils their certainty and the early opportunity to accept their fate. The worst situation, as the older pupils were constantly reminding us, was to enter puberty and enjoy all the pleasures of manhood, then to be operated on and have to spend the rest of ones life as a 'girl'. The older pupils discussed this a lot during the nighttime chats in the dormitories. It was. I exploded immediately when I felt him cumming inside me, screaming and kissing him as he pumped the remains of his orgasm into my womb.Derek collapsed on top of me, all 250 pounds of him still balls deep inside my little 125 pound body, yet I felt safer than I ever had before. We lay still for a minute, and then kissed for a few more minutes while his cock softened inside my pussy. "Damn that felt good Marcy," he said, "I really needed to get that out of the way. My balls were just aching from.