I stopped and wrapped one leg around the rope and was wondering what in the hell was going on when, without warning, my cock simply spurted cum into m...y jock strap. I didn't have time to be embarrassed, what had happened was so unfathomable that I grabbed for my crotch and of course when I did I let go of the rope and I half slid and half fell, my body hitting the gym floor with a loud thud. I looked up and saw several classmates standing around looking worried and I smiled at them and then I. "You're so naive, Jenny." Have you given a rimjob yet?" Kim interjected. "Well, no." "Been fisted?" "Tried watersports?" "Had an enema?" "Done a midget?" "Uh, none of those." Well, I'd hardly say you've done everything yet." Alexis giggled. "I have to take a piss, don't go anywhere", she said, picking up her bag.Jenny could hear a crowd gathering in the hallway. Shawna ducked outside to quiet the commotion. With Shawna gone and Alexis in the bathroom, Jenny considered trying to escape, but Kim. I made her come several more times with my mouth and fingers, before I'm satisfied. Sitting up and wiping my face, I look to see Marina's eyes closed and her chest rapidly rising and falling. I shirked my clothes off quickly, kneeling to remove the pillow. Marina's eyes open wide when she sees my rock hard cock in front of her. Grasping it firmly in her hand, she strokes it several times to my pleasure. I'm also sensitive from last night and all I wanted to do is be back where I was, inside of. ” She giggled.Then took the chainsaw and put it on my leg. I remember it tickling but it felt good. I laughed a little as she pulled the string back again. This time she put it farther up my leg, far enough that it vibrated my balls. It tickled a little but felt really good. I instantly got hard. I remember her kind of staring at the tent in my pants, and I was getting embarrassed. She pulled the string again, put the chainsaw right on my hard dick and pulled the trigger.“Timber!” she laughed..