SB: $27.97 (111.9 bb)
Hero (CO): $25.84 (103.4 bb)
BB: $25 (100 bb)
BTN: $27.04 (108.2 bb)
MP: $25 (100 bb)
UTG: $24 (96 bb)

Preflop: Hero is CO with K Q
2 folds, Hero raises to $0.75, BTN raises to $1.75, 2 folds, Hero calls $1

Flop: ($3.85) 8 K 7 (2 players)
Hero checks, BTN bets $1.25, Hero calls $1.25

Turn: ($6.35) J (2 players)
Hero checks, BTN bets $4.53, Hero calls $4.53

River: ($15.41) 2 (2 players)
Hero checks, BTN bets $10.98, Hero??

Villain:
29/19/3bet 9/cbet 43(100 in 3bpot)/cbet turn 100/
AF.OTF 7/AF.OTT 14/AF.OTR 8/WTSD 35/ 87hands.

prelfop probably is kind of close,putting myself OOP in 3bepot,but since Villain's 3bet range i expect to be wider because SB is a fish, i fold 70% to 3bet,and by making he's size smaller, i think calling pre is not so bad.
OTT villain changes he's betting patterns to 3/4, that clearly indicates that he's equity has improved,
now on the river?

lol ive been changing my mind about this for like 10 min already. i mean your hand is pretty face up so i dont know if hed ever be bluffing in this spot, esp since hes repping such a narrow range. would he turn AJ into a bluff here? im leaning towards fold just because your perceived range is pretty strong but its a gross spot.

fold pre > 4 bet pre

flat is terrible

k. thanks.