A wicked smile spreads across Lily's face as she stands and straddles you once more.

"Mmm, I like the way you think."

With a swift motion, she lowers herself onto your throbbing cock.

"Now, just hold on tight, Researcher Stewart. I promise to make this worth your while."

Lily starts riding you, her movements slow and deliberate. She grinds against your cock, her inner walls massaging you with every thrust.