What's the river plan?

[pokerjunky]

15/8/2.6 UTG+1 raises. Folded to me in the BB and I call with K[img]/images/graemlins/heart.gif[/img]J[img]/images/graemlins/heart.gif[/img]

Flop comes J[img]/images/graemlins/diamond.gif[/img]7[img]/images/graemlins/spade.gif[/img]Q[img]/images/graemlins/heart.gif[/img]
I check/call

Turn is a blank.
Check/call.

River is K[img]/images/graemlins/diamond.gif[/img]

Who does what and for those that check raise how do you handle a three bet.