shorthanded O8 hand

[Ojingo]

This is from a $2-$4 limit O8 game on stars, which was temporarily 4-handed. Opponents are relatively straightforward, not particularly tricky or aggressive. The button is a bit of a calling station.

I have AA93 rainbow and raise from UTG. Button and BB call. BB is shortstacked and after his call only has $5 left.

Flop is [8d][4h]. BB leads out, I raise. Button calls, BB raises all in, I raise to $6, button calls.

Turn: . I bet, button raises. I call.

River: . I check, button bets, I call.

Outcome: BB had A2 and won low main pot; button had 78TJ and won Hi with trips . I got low side pot.

Thoughts? Overaggressive on the flop? What hand range do you have my opponents on in this kind of situation?

[Felonius_Monk]