Cap the turn with AA ?

[rafiki]

decent 10 handed 10-20 game, and I've got 0 reads as I'm newish to the game. I look down at AA in UTG+2.

UTG limps, I raise, MP calls, MP+1 raises, all fold (including blinds), UTG calls, I cap, remaining guys call.

4 people capped to the flop:

2 9 6 rainbow, I cheer.

checked to me, I bet, MP calls, MP+1 raises, UTG calls, I reraise, MP calls, MP+1 reraises again, UTG calls, I cap, all call.

At this point I'm a lot less concerned with MP+1, and a lot more curious about what the hell the 2 other dudes have.

turn:

3 (putting 2 clubs out)

Before I post results from other streets, is this pretty standard for you ? Do you keep showing aggression until one of the other 2 guys shows you something ? That MP+1 guy seems ready to keep firing with his QQ-KK. He seems ready to cap every street without concern about the other 2 guys. I can't help but get the feeling that he's going to cost me a lot of money to get to showdown, assuming I'm even beat.