[5NL] AKs...3bet pot...multi way

[Cobra_1878]

SB - 26/21/12 over 198 hands. 69% cbet, 67% cbet in 3bet pots 4/6.

Hadn't seen anything out of line from villain to this point other than he liked to 3bet.

BU - 55/34/6 over 92 hands. Fold to 3bet 31%, 4/13. Fold to cbet 64%, 7/11.

Had seen BU do some real fishy things, cold calling a 3bet with 75s, OOP, and c/r AI with FD. He also called a 3bet, OOP, K5s.

PokerStars - $0.05 NL (6 max) - Holdem - 6 players
Hand converted by PokerTracker 4

MP: $7.38
Hero (CO): $5.00
BTN: $8.53
SB: $8.47
BB: $13.22
UTG: $5.00

SB posts SB $0.02, BB posts BB $0.05

Pre Flop: (pot: $0.07) Hero has A K

fold, fold, Hero raises to $0.15, BTN calls $0.15, SB raises to $0.60, fold, Hero calls $0.45, BTN calls $0.45

Flop: ($1.85, 3 players) 6 Q A
SB bets $1.30, Hero calls $1.30, BTN calls $1.30

Turn: ($5.75, 3 players) 9
SB checks, Hero bets $3.10 and is all-in, fold, fold

Thoughts?