Both villains are pretty loose and not very good, what do I on the turn?

Party Poker No-Limit Hold'em, $ BB (5 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

SB ($20.40)
BB ($362.81)
UTG ($60.19)
Hero ($207.90)
Button ($93.48)

Preflop: Hero is MP with J, J. SB posts a blind of $1.
1 fold, Hero raises to $7, Button calls $7, 1 fold, BB calls $5.

Flop: ($22) 4, 6, 2 (3 players)
BB checks, Hero bets $15, Button calls $15, BB calls $15.

Turn: ($67) 5 (3 players)
BB checks, Hero ???