50nl, full stacks.
I call UTG with 99. 2 callers in MP and Button makes it 7x which is a pretty standard raise. Me and other limpers call. Flop comes 49Q rainbow. Checks round to button who bets $2 into a $12 pot. I raise to $7. Folds back to button who reraises to $25.
Its obvious what the villan has?