I sat on the bed exhausted. “You’ve done it again, baby; you got me to fuck you again. After all I said on Friday” “I’m sorry Daddy; I just ...anted to do it one more time; am I a naughty girl?” “You are a very naughty girl” and spanked her twice on her ass. And that was the last time I fucked Sarah and it’s been nearly five months now. We are really good and spend all our weekends together just enjoying each other’s company. We are still quite open though, feeling perfectly at home to wander. I do not know if it was the pleasure of his touch, or my need to submit to his instruction that kept me from attempting to stop this assault on my pussy; probably both. I just know that I did not or could not do anything to stop, or even discourage my son.I was becoming very aroused. I could feel the orgasm was building up inside of me.After a few moments, I pleaded quite unconvincingly, “Eric, please. You’re going to make me cum. Eric, please we cannot do this again.” I was rocking my hips in. " * * *Tuesdays were certainly a day that Paul no longer liked. His body wasbecoming more curvacious by the week and PE, Tuesday's final lesson wascertainly making things awkward."I'm going to have to put padding around my waist. It looks very goodfor a girl, but not for a boy," he said to Laura next morning."You are starting to look very much like a girl. Any girl would be happywith your figure," said Laura. "But, lets see. Maybe we should wrap afew towels around your waist. That should. She squirmed below me, eyes closed, tossing her head back and forth, her red hair splayed out across her pillow. She was breathing heavily and grunting each time I pushed into her. She held her chest, alternately pulling on her nipples and squeezing her tits together. There were low, animalistic noises deep in her throat as I fucked her. Any second now, I knew I was going to cum, and I knew I needed to pull out. I wasn't wearing a condom, and she told me she wasn't on birth control. She had.