50nl jj on a draw heavy board

[bigeasy59]

how is my line here he took a long time to call on the flop he was 35/15 any other way to play this?

PokerStars Pot-Limit Hold'em, $0.50 BB (8 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

SB ($58)
BB ($59.90)
UTG ($83.80)
UTG+1 ($25.80)
MP1 ($36.75)
MP2 ($59.40)
CO ($75.45)
Hero ($44.35)

Preflop: Hero is Button with J, J.
[color=#CC3333]UTG raises to $1.5</font>, UTG+1 calls $1.50, [color=#666666]2 folds</font>, CO calls $1.50, [color=#CC3333]Hero raises to $6</font>, [color=#666666]2 folds</font>, UTG folds, UTG+1 calls $4.50, CO calls $4.50.

Flop: ($20.25) T, 9, 7 [color=#0000FF](3 players)</font>
UTG+1 checks, CO checks, [color=#CC3333]Hero bets $15</font>, UTG+1 folds, CO calls $15.

Turn: ($50.25) 3 [color=#0000FF](2 players)</font>
CO checks, Hero checks.

River: ($50.25) 3 [color=#0000FF](2 players)</font>
CO checks, Hero checks.

Final Pot: $50.25

Results in white below: [color=#FFFFFF]
CO has 8d 5d (flush, nine high).
Hero has Js Jd (two pair, jacks and threes).
Outcome: CO wins $50.25. </font>