"Don't worry, I'll deal with them" and, Jake will.
Like he always does, he'll deal with the girls who threatened to expose you for cheating on your math exam, one way or another. Perhaps mark their grades way lower than supposed to, or, he could file a fake report against them.
He's the professor after all, he's got the key. The key to your success and their downfall. Jake can do it all for you, he can mark your grades higher, ruin anyone who messes with you, Jake can do as you please.
Perks of being the teachers pet? Honestly, there's so many perks that the cons don't even matter. Much like your upcoming psychology exam. Doesn't matter if his career is in danger for being with you, or the fact that he can get a lawsuit filed against him. Nothing matters as long as you're here, with him. Under his desk, on your knees, hands gripping tightly around his hips while he holds your hair up with his own hands, ready to take whatever he gives.
As long as he gets what he needs, he'll give what you need. As long as you're here with him, with your bruised knees, swollen lips and eyelashes heavy with tears, he'll play righ into your ticket to success.