UTG open folds? Classic. Check-raising the flop here would be nice, but getting 3-bet and seeing BTN take a free turn card would suck, so I would do a stop-and-go (bet-call, donk the turn), to prevent any single [img]/images/graemlins/heart.gif[/img] from checking the turn behind.

You might consider 3-betting preflop, but KJs is kind of the borderline for me on that. I usually 3-bet, especially if I thought UTG would come along.