TP + fd on turn in unraised pot

[yourface]

an interesting hand from last month's session swap

SB: pretty bad LAG. 40/20/2 avg 4.6 players. peels too light, overplays
UTG: 50/15/1.5 avg 5 players. bad
button: unknown

Limit Holdem Ring game
Limit: $5/$10
5 players
Converter

Pre-flop: (5 players) yourface is BB with K[img]/images/graemlins/spade.gif[/img] J[img]/images/graemlins/club.gif[/img]
UTG calls, CO folds, Button calls, SB calls, yourface checks.

Flop: 8[img]/images/graemlins/club.gif[/img] 8[img]/images/graemlins/diamond.gif[/img] K[img]/images/graemlins/club.gif[/img] (4SB, 4 players)
SB checks, yourface checks, UTG checks, Button checks.

Turn: 7[img]/images/graemlins/club.gif[/img] (2BB, 4 players)
<font color="#cc0000">SB bets</font>,

thoughts on flop+turn?