With help from the teacher

"Quan, calm down," says Professor Morgan in her silky British accent.

You take a moment to admire your beautiful professor as she climbs onto the bed. Her breasts aren't as big as some of the other girls in the room right now, but they're pretty big, nicely rounded, and they have a delightful spattering of freckles across the tops. As she kneels behind Quan, she leans over the shorter girl and her red curls fall over Quan's pale shoulders.

"Just breath deeply," she says.

Quan relaxes, but keeps a delicate little hand on your cock to make sure the tip stays in her pussy. She inhales as the professor puts her hands on Quan's shoulders.

"That's good, deep breaths. Part of this experiment is keeping the subject stimulated, so we can't waste too much time.

"Plus, it's my turn next and you're keeping me from that wonderful cock."

Professor Morgan slams her full weight down on Quan's shoulders, driving the small girl down on your big cock. Her tight pussy squeezes you like a clamp, creating a pain that also feels so good you don't want it to ever stop.

Quan screams in pain, then screams in ecstasy. She pauses for a moment, inhaling deeply through her nose, then eagerly pushes herself up and down, her tight pussy pulling hard on your cock with every stroke. Her motion swirls her large breasts around in your hands.

"Oh, this isn't right!" yells Dagny. The blonde girl is so hot she's obviously not used to being deprived of what she wants. "There's no way I'm waiting until after Professor Morgan!"