Continuation bets

[Sponger15SB]

Situation that frequently happens:

$1/2 6max

I raise with KQo from UTG+1, SB and BB both call, they're both stupid typical low limit players.

Flop is like 4 4 3 rainbow. They both check and I'm not really sure what to do because I'm likely to get called in both spots with jack high and nine high.

Do I bet here? I am not sure why?

Any general advice on contination bets with nothing? In no limit I could bet with just about anything and expect to take it down like 75% of the time.