Yes

David took his hands away from Lyra's head, which woke her. He saw her blink rapidly.

"Professor, please let me marry you!" she begged.

"Lyra, I'm flattered, but I am over 50."

"I don't care!" Lyra said. "I know you've lusted after me, and I want to marry you! Besides, what's a little age difference these days? Please please please! I'll drop out of school to be more devoted to you, I'll cook and clean and do whatever you want! I'll love and cherish you above all else! Please make me Ms. David Caldwell!"

"Well, when you put it like that, how can I refuse?" David asked.

They made out passionately.