SB is loose and aggressive, by the time the river hits I am putting him on a J or maybe second pair, whats your move?

Party Poker
No Limit Holdem Ring game
Blinds: $0.50/$1
5 players


Pre-flop: (5 players) Hero is BB with
UTG folds, CO calls, Button folds, SB calls, Hero checks.

Flop: ($3, 3 players)
SB bets $3, Hero calls, CO calls.

Turn: ($12, 3 players)
SB bets $3, Hero raises to $11, CO folds, SB calls.

River: ($34, 2 players)
SB checks, Hero ???

I can see the argument for raising on the flop, however it just does not quite fit into my style of play at this time, I feel if I hit the straight my hand is not obvious and the LAG will pay me off, also he is unlikely to lay his hand down to a raise, plus with others left to act behind me, I am happy to encourage multiway action giving better odds on my draw.

Anyhow on the river I bet $22 expecting a call from 3 jacks or two pair, he flat called with [7c], thank you for not putting me in a tough spot by shoving sir, I guess he was concerned about a full house...

After the hand I was thinking checking behind may have been a better move, however upon reflection I was being results based, bet/fold appears to be the best option.