Only had 3 hands with the Villain. Here's how it played out...

PokerStars No-Limit Hold'em, $0.05 BB (9 handed) - Poker-Stars Converter Tool from FlopTurnRiver.com

saw flop

CO ($5)
Button ($5)
SB ($4.78)
BB ($3.69)
UTG ($5)
UTG+1 ($4.42)
MP1 ($5)
Hero (MP2) ($5)
MP3 ($7.78)

Preflop: Hero is MP2 with K, K
1 fold, UTG+1 calls $0.05, 1 fold, Hero bets $0.25, 3 folds, SB raises to $0.75, 2 folds, Hero calls $0.50

I really think I should have 4-bet/shove here. But, I opted to play cautiously because he was unknown and I would have position.

Flop: ($1.60) 10, 2, 5 (2 players)
SB bets $0.76, Hero calls $0.76

OK, no aces. Good. Was putting him on JJ+ or AK so I flatted.

Turn: ($3.12) 4 (2 players)
SB bets $3.27 (All-In), Hero ???

It's a blank, but he shoves. I think I'm still ahead here. Against TT+,AcKd,AcKs I'm at 63% equity.

I think it would have been better to 4bet/shove preflop.

What do you guys think?