Black Aces on the Button- What is the flop play?

[WDC]

Live 8-16. CP Minnesota.

UTG raises. UTG+1 calls , folds to me and I three bet black aces. Blinds fold. Both others call.

UTG is a loose caller preflop (damn near any two suited, any two gaps of better, any pair) but doesn't raise lightly, especially UTG (I am putting him on a Broadway Ace, if it's less than AQ its suited and pocket pairs of 99-AA), UTG is usually pretty tight but is slightly tilting and doesn't respect UTG's play at all (I put him on any pair, any suited connectors or any suited broadway or any Big Ace.)


Flop comes K-10-9 of diamonds. UTG bets UTG+1 raises. What is the play with black aces?