Then tease the underside of my erection with just a fingertip. And tease some more.“Then oily thumb tip and and fingertip of two hands along the ful... length of my erection, tease, tease, as the sides of my hands slap noisily against my torso just as my torso slaps against your glorious ass cheeks while I am fucking you from behind.“I am breathing very heavily as my orgasm builds to a crescendo, I don’t want the sexual pleasure to end, though sexual release is so close.“Glorious relief as I cum. She was moaning pretty loud now with seven inches of cock inside her tight vagina. I started thrusting, slowly at first then gradually getting faster. "I'm about to cum!" I said. "I want you to shoot it all in me, I want to feel your hot cum in my tight pussy!" she said. Then right on command I shot it all in her and she was coming too. I stood up, with my dick still in her pussy and started thrusting again. But this time as fast as I could. It didn't take her long to cum. I lifted her off of. " Oh! Uhm, sorr - I mean - oh," I stammered."If you want to get to your next class in time for some relief, Mr. Walker, you'd best hurry."For a moment I thought about asking her to do it then and there, but decided not to and hurried away to Civics.Mrs. Jacobs glanced at the clock as I entered the room, one of the last, just before the bell rang. "Ah, good afternoon, Mr. Walker." Good afternoon, Mrs. Jacobs." I hesitated. She was gray haired, with sharp blue eyes behind bifocals. She'd been. "Children! What are you doing?!"Katherine said dismissively, "Mom, it's no big deal. Brother got a little hard, and I'm just helping him out." Seeing that she'd been found out, she decided to go all out. She bent forward, tilted her brother's erection straight up, and began ostentatiously sliding her fingers all the way up and down it, instead of just furtively rubbing his sweet spot like before.Susan couldn't help but step closer to get a better view, even as she complained, "Well, I'm.