bottom set, i cant fold here can i?

[ronitonline]

Full Tilt Poker
$0.50/$1 No Limit Hold'em Ring Game
6 Players
LegoPoker Hand Converter

<font color="black">Stack Sizes</font>
BB: $119.8
UTG: $104.85
MP: $145.40
CO: $131.70
Hero (BTN): $98.50
SB: $123.9

<font color="black">Preflop:</font> 3[img]/images/graemlins/spade.gif[/img] 3[img]/images/graemlins/club.gif[/img] ($1.5, 6 players)
UTG folds, MP calls $1, CO calls $1, Hero calls $1, SB calls $0.50, <font color="red">BB raises to $7.50</font>, MP calls $6.50, CO folds, Hero calls $6.50, SB folds

<font color="black">Flop:</font> 9[img]/images/graemlins/spade.gif[/img] 7[img]/images/graemlins/heart.gif[/img] 3[img]/images/graemlins/heart.gif[/img] ($24.5, 3 players)
<font color="red">BB bets $20</font>, <font color="red">MP raises all in to $137.90</font>, Hero calls all in for $91