[SH] NL50 T9o bluff with oesd

Prima, $0.25/$0.50 No Limit Hold'em Cash, 6 Players

Hero (BB): $72.41 (144.8 bb)
UTG: $11.65 (23.3 bb)
MP: $50.25 (100.5 bb)
CO: $111.23 (222.5 bb)
BTN: $50 (100 bb)
SB: $50 (100 bb)

Preflop: Hero is BB with T 9
4 folds, SB raises to $1.50, Hero calls $1

Flop: ($3) J 8 5 (2 players)
SB bets $1.50, Hero raises to $5, SB calls $3.50

Turn: ($13) A (2 players)
SB checks, Hero bets $8.50, SB calls $8.50

River: ($30) 3 (2 players)
SB checks, Hero checks

Anon table.

I had only a few hands on SB, didnt seemed fishy so far (~20/20), but mostly unknown.

Is it a good line BvB? His cbet size doesnt show much strength, and I have decent equity, so made my semibluff raise.
Turn? It couldnt help him too much, but could be another overcard to his hand. Plus if he has some draw, mainly he could only continue with A:hX:h...