The drone of pleasure hypnotized me as I floated between being pounded brutally by Mark, and stretched mercilessly by Paul.But then I felt the rub of ...ark’s cock on my ass.“Ohhh,” I moaned. “Mark, I don’t think I can…”He grabbed my hair and pulled me back, bending my face up hard to his. He was pressing the head of his cock into me. “But I can,” He said, his tip popping in as his shaft slid slowly into me.I screamed as a jolt of pain/pleasure shot to my toes. His hand still in my hair, Mark. As you can see, the title of the course is ‘Exploring Human Sexuality’. If you are interested in the human reproductive system and where babies come from, then there is a different class waiting for you in the science department.” Again laughter. “No, what we will be investigating are human sexual desires, sexual stimuli, and various sexual lifestyles. In addition, this class is also participatory, which means that you all will be directly involved in the weekly subjects…” This last comment. I didn't mind. Either way Shelly was in trouble."That's not true! She tricked me! Those..."Mom interrupted her coldly saying, "Shelly be very careful about the next words that come out of your mouth."Shelly went totally while as she realized what she'd been about to admit."They ... they ... they..." Well?" Mom asked, hands on hips, toe tapping.Shelly mumbled, "They were supposed to go to Lizzie's room." So you were trying to play a trick on Lizzie? Well the trick was on you wasn't it? Now go to. I liked to murmur to him softly as he sucked: "You are such a handsome boy... my fine young man... such a beautiful body... I can see you're happy, aren't you, honey?... you good boy!I loved it, standing by his bed in only my sopping wet panties as my son massaged and sucked my breasts voraciously, his penis sticking straight up for me as he sucked just like when he was my baby boy.And then after a few minutes, I would kiss him goodnight and go to my room and do what I needed to do, leaving him.