Villain unknown
Pre:3b for value vs AX and weaker pairs
Flop: Board is pretty ugly. All his Ax gets there so do TT / 99. I thought I can either c/f flop or b/f flop, c/f Turn unimproved to maybe get value for K :heart:Q 
or some random float with weaker pairs or even get better hands to fold like KK/QQ ( I am assuming he is not folding top pair obviously)
Pacific Poker - $0.10 NL - Holdem - 8 players
Hand converted by PokerTracker 3
MP+1: $2.00
CO: $13.64
BTN: $10.10
SB: $7.57
Hero (BB): $12.09
UTG: $10.13
UTG+1: $11.49
MP: $2.01
SB posts SB $0.05, Hero posts BB $0.10
Pre Flop: ($0.15) Hero has J♠ J♦
fold, fold, fold, fold, fold, BTN raises to $0.30, fold, Hero raises to $1.20, BTN calls $0.90
Flop: ($2.45, 2 players) T♥ 9♦ A♥
Hero bets $1.22, BTN raises to $8.90, fold
BTN wins $4.65
Not vs unknown. You might CB it a bit bigger on flop but it ain't a huge mistake. Nice hand!