$4 NLHE Full Ring: KK in EP facing 3bet from nit in the blinds

Villain in blinds is playing 7/7/2 with a FT3B 100% over 40ish hands. I figured if I 4 bet I fold out everything I beat so I just flat the 3b. Call flop with the intention of stacking on a non A turn. Pretty easy decision on the turn obv. Line ok?

Merge - $0.04 NL - Holdem - 8 players
Hand converted by PokerTracker 3

MP+1: $3.10
CO: $1.56
BTN: $4.04
SB: $4.00
BB: $4.99
UTG: $4.49
Hero (UTG+1): $4.34
MP: $4.65

SB posts SB $0.02, BB posts BB $0.04, CO posts DB $0.02

Pre Flop: ($0.08) Hero has K♥ K♣

fold, Hero raises to $0.16, fold, fold, fold, fold, SB raises to $0.54, fold, Hero calls $0.38

Flop: ($1.14, 2 players) 7♥ 6♣ 2♦
SB bets $0.76, Hero calls $0.76

Turn: ($2.66, 2 players) A♦
SB bets $2.70 and is all-in, fold

SB wins $2.52

why just call u must 4bet preflop. on the flop another bad play by calling. u played KK like u have pocket 66-.

I already told you why I just called pre. Cuz nits don't call 4bets with anything other than aces.

Calling preflop is totally fine, although at 4NL I would probably encourage a raise. You definitely have to raise the flop as you're getting it in vs JJ/QQ/1010 and you could still easily be called off by AK/AQ

Those stats over 40 ish hands is not a nit; it's anyone who's card dead over 40 hands. 4bet pre and be willing to get it in.

Get it in preflop

what size would you raise to on the flop? Just ship it?

I would have reraised to $1.50 preflop