1/3 NL game
Hero (540): UTG. Winning reg, typically play pretty ABC.
V1 (just under 300): MP. Late 60's white guy. Loose-aggressive reg, overplays hands a lot.
V2 (covers): LP. MAWG, competent reg that plays 2/5 when it runs (it doesn't run regularly here). V2 gripes how he never wins against Hero (nothing special - just ran into Hero with second-best hands in a couple of big-not-huge pots over a span of a few months).
Preflop:
Hero raises to 12 with 7
6
V1 calls
V2 calls
Both blinds call
Flop:7
6
3
(Pot: 55 after rake)
Blinds check
Hero bets 40
V1 raises to 100
V2 raises to 285 (which would put V1 all-in)
Hero ??
What do you do here? Pot is currently 480, Hero's stack is 488