raise...?

[soah]

Five handed. I limp with 55, megafish checks after rebuying and dead posting, seemingly decent player on the button limps, loose/bad player limps in SB, someone who sat down 10 seconds ago raises to $24 in the BB. Notes from a previous session against BB simply read "very loose." I call, megafish folds, button calls, SB calls.

Flop Tc 8c 3s - $102 four players

Check check check check

Turn 3c

SB checks, BB bets $100

Me and button have ~$600, SB and BB have ~$400.

I hold the 5c.

SB has made some ridiculous calls, but he's not overly passive and I'm pretty sure he'd bet the turn if he had something. Button doesn't seem stupid so I'm pretty sure he would have bet the flop if he thought his hand was good.