KK in 4-bet pot

[higHstaKesOwneR]

Let's say we are playing nl400.
Our image is laggy and we open in a 6handed game for 14$ from the cutoff.
Everbody folds insteed of the BB who 3-bets us to 48$.
We hold K[img]/images/graemlins/spade.gif[/img]K[img]/images/graemlins/heart.gif[/img] and 4-bet to 125$.
Villian seems to be a solid player and the effectiv stack is 400$.

He calls and the flop comes:
A[img]/images/graemlins/club.gif[/img]T[img]/images/graemlins/heart.gif[/img]7[img]/images/graemlins/heart.gif[/img] (252$)

BB checks, Heros plan is?