Rebel (The Renegades, #3) by Rebecca Yarros

She's Penna Carstairs.
The Renegade they call Rebel.
FMX-treme Magazine's sexiest female athlete of the year.
There's no rule in extreme sports she hasn't broken,
No gender barrier she hasn't demolished.

She's the woman I met in a bar in Vegas.
The woman I illegally BASE jumped for.
The woman I spent one insane, incredible night with.
But now I'm screwed.
Or rather...not screwed.

Because the woman I can't get out of my head is the one woman I can never touch again.
I'm Dr. Cruz Delgado-the youngest professor on this campus
And Penelope Carstairs just walked into my class.