Jacked Up?

[PokerBabe(aka)]

Mirage 20-40. Good mix of locals and unknowns. I am UTG with black jacks and raise. Unknown who has just been in the game for 15 minutes calls quickly. I know nothing about his play. Folded to bb who also calls.

Flop is 9c, 9s, 5c. BB checks, I bet am raised (bb folds) and I 3 bet. Opponent makes it 4 bets and I call. Turn is a red 7 - I check/call. River, Qd. I check/fold.