This has been on my mind for the last week and I am hoping for some feedback.

Playing in a 1/2 NL homegame.

I am on the button with K-Qs. UTG raises to $10 ( he has raised his last 11 hands anywhere from $2-$25 and the best thing he has shown is A-6 offsuit. Can you say LAg? Played with him numerous before and he is a total maniac). One other calls before me, I call, SB calls.

Flop: K-5-3 rainbow.

SB checks, UTG raises $10, guy folds, I get ready to re-raise when the SB announces that he thinks UTG is full of shit and it going to put him all-in (about $50).

I look at SB for a second and ask him if it is ok for me to act first. He apologizes, says he forgot I was in the hand, and the action is now on me.

SB is also a pretty loose-aggressive player, but in a more controlled way (if that makes sense). He reads people fairly well and likes to come over the top with his junk when he senses hesitation/weakness (although I think he knew UTG would probably call because he usually does with his nothing.) At this point he has about $140 before making any calls/pushing the guy in and I have around $200. I am not too worried that UTG has a good hand.

What is my move?