2/2 game running a few hours, very limpy and passive, a lot of flops are given up.

Hero, white late 20s, big beard.good image, opening a lot, but only shown good hands at showdown. Most active player. Bought in for 300, now 620.

V, okay reg, late 20s white. plays loose pre, but pretty straight forward post. limps a lot. Has talked about respecting Heros game. stack 800 (must have won money before I came)

History hand: Hero opened ATo on Btn, V called after utg limp, Hero bet twice with TP and riverd A for top 2, bet big, V called with worse 2pair and kept talking about how lucky I got and how he played it so well, blabla. Likes to slowplay and disguise hands.

V limps utg2, 1 other limper, Hero KQ 14, BB calls, V calls, Limper calls.

Flop 58
962
checks to Hero who bets 28, BB folds, V calls.

Turn 114
962T
V checks, Hero checks.

River 114
962TK
V bets 42, Hero?

I've been in these spots so many times and still don't know what to do. We're supposed to have AK after we check turn yet they still bet when the river brings the K.

I can't see what worse hand bets that we beat. Would he do this with 9x? Seems unlikely. A set makes sense as does T9. Then again maybe he's block betting 9x to prevent you from betting big with Kx.

I don't like it but I guess sigh call for over 3:1.

I call.

Just given my odds I feel i should call in those spots, because of the amount of combinations of hads that he could value own himself with and that he could bluff, given that I only need to be good here 1 out of 4 times.

But on the other hand this line is so nutty vs a good player.

Thats what made me hesitate.