Big Blind Special???

[TiK]

Party Poker 5/10 Hold'em (9 handed) converter

Preflop: Hero is BB with 2[img]/images/graemlins/heart.gif[/img], 4[img]/images/graemlins/heart.gif[/img]. CO posts a blind of $5.
<font color="#666666">4 folds</font>, MP3 calls, CO (poster) checks, Button calls, SB completes, Hero checks.

Flop: (5 SB) 4[img]/images/graemlins/diamond.gif[/img], Q[img]/images/graemlins/spade.gif[/img], 4[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(5 players)</font>
SB checks, Hero checks, <font color="#CC3333">MP3 bets</font>, CO calls, Button folds, SB calls, Hero calls.

Turn: (4.50 BB) J[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(4 players)</font>
SB checks, Hero checks, <font color="#CC3333">MP3 bets</font>, CO calls, SB calls, <font color="#CC3333">Hero raises</font>, MP3 calls, CO calls, SB calls.

River: (12.50 BB) Q[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(4 players)</font>
SB checks, Hero checks, <font color="#CC3333">MP3 bets</font>, CO calls, SB folds, Hero?????
Final Pot: 14.50 BB

Would you call the river bet with the original bettor betting and the call???