Preflop I raise to $6. As played, I bet $7.50 - 8.50 on that flop and don't hesitate to get it all in. If you are up against KsKx/QsQx you are about a 60% favorite. Put it this way. If you don't think he has a set or made flush, you should WANT to get all in on this flop. If stacks are deeper then it gets more complicated, but as is, easy push.