Comm 40: Bottom set vs Iris

[ShawnHoo]

Decent game last week. Iris, for those of you who have not had the pleasure of meeting her, is a Commerce regular. She's a trust fund pro (I have no idea if she actually has a trust fund, but you get the idea) who sucks at poker and at life. She frequently abuses dealers, sometimes in a racist manner. Other posters here have said she's improved her game, but she still seems like a tilt monkey to me.

10 minutes ago, after losing yet another pot because of these stupid dealers, she asks for a new setup and walks away from the table. She's now back and posts in late position.

Folded to Iris who raises her post. I pick up 33 on the button and 3-town that [censored]. Folded back to Iris who calls.

Flop: A53r

Iris checks, I bet, she check-raises my stupid punk kid ass. I 3-bet her stupid old lady ass, she 4-bets.

What's the optimal line from here?