You want her to stay

"No, no," you say, grabbing Trish's slender ankles and pushing them back over her head, "please keep going, Peggy. I'm very interested to hear how things turned out for you."

"Alright, Professor," the blonde replies. "I was crying so much my tears were running down my chest and had started to drip onto the floor. Harry told me he'd whip my tits, too, if I kept getting the floor wet, but that just made me cry harder."

Relieved to be resting on her bruised buttocks no longer, Trish gingerly pulls her cheeks apart, offering up both her bum hole and fanny for your pleasure. With one quick thrust, you impale yourself deeply and start to pound her hard and fast.

"He lashed me, back handed with just the tips of the whip and it was all I could do not to scream loudly enough to disturb the neighbours. It felt like my back was being sliced to ribbons and I just blubbered out 'Seventeen, thank-you, sir. I'm sorry for being clumsy.' I could feel my hands slipping against the wall and was scared I wouldn't be able to stay in position for much longer, so I was ever so slightly relieved when my husband started speeding up. Of course, that brought its own difficulties.

"The next lash came straight downwards and every point where it crossed the earlier weals exploded in pain, quite taking my breath away. I barely managed to count again before he scourged me from the right. My back and sides were a huge mask of pain; some parts were more excruciating than others, but it came in waves so that I couldn't tell what hurt the most. The twentieth was diagonal and I nearly blacked out from the agony pulsating through me with every beat of my heart. It was my first spanking since the tipping rules came in and I was pathetically grateful for the trouble he took to discipline me, begging for the chance to make it up to him."

Trish groans quietly while you piston into her, her boobies wobbling prettily, but she skilfully massages your member with every penetration, feet tucked behind her head.

"Harry wanted my rear passage; he often likes that after a spanking, but I'd never before felt so degraded and helpless as when he stretched me open that day. The act was something I owed him, not because of the love I hold for him, but because of the inconvenience I caused. When the hair on his chest scraped across the welts on my back, I knew I deserved to suffer for his pleasure. He climaxed inside me, then had me kneel and worship him with my mouth and I had to squeeze hard to keep from making a mess on the floor, my back on fire and hurting even worse than when he was whipping me."

You grunt under your breath, feeling yourself near completion, wrapped in your weeping grad-student's soft, warm folds.

"After I finished, he made me kneel on the washboard we keep for such occasions with my hands on my head and then spritzed my back with saltwater. I nearly made another mess on the floor then!"

Peggy laughs at the harrowing memory and at that moment, you cum inside Trish, spending yourself fully before you withdraw and spin the black girl round so that her head's hanging over the edge of the table, mouth open to clean you.

"Thankfully, I've learned better self control from the staff here at the university, or I'd've had another whipping coming, somewhere a lot more intimate, so I owe you thanks for that, Professor. I'm sure my kitchen floor is very grateful, too!"

You put your clothes in order and dismiss the naked girl in front of you, before turning back to the other student in the room, impressed by the way she seems to have accepted the tipping rules in a marital setting.

"I'm glad to have been of service, although the moral of the story seems to be not to put laminate down in a kitchen."

Peggy laughs again. "Absolutely, Professor. Next time it's tiles for sure." Suddenly, she takes notice of her colleague for the first time since entering your room, standing up and grabbing her placard to read. Trish immediately stops and stands passively, still sniffling a bit, waiting for her to finish.

"Wow, that's a serious one," she says, releasing the younger girl. "I'm sure my husband will have me on a nudity punishment sooner rather than later, but hopefully not for as long as this looks like it might end up being." She shudders with apprehension, but doesn't bother sitting down again, knowing your next appointment is imminent.

It's almost a shame that you still have other students to supervise today, but you never know, their meetings might prove to be even more enjoyable, so you bid both girls farewell and watch them leave, Peggy (holding the door) the happier of the two by quite some margin.