25nl JJ from the SB vs btn overbet

[Logun]

Btn has been at the table for 4 hands

I am lost here as to what to do

Is smooth calling PF ok? or is this a 100% 3 bet situation?

Full Tilt Poker, $0.10/$0.25 NL Hold'em Cash Game, 6 Players
LegoPoker Hand History Converter

UTG: $14.60
MP: $13.85
CO: $8.65
BTN: $25.35
Hero (SB): $24.75
BB: $25

Pre-Flop: J[img]/images/graemlins/diamond.gif[/img] J[img]/images/graemlins/spade.gif[/img] dealt to Hero (SB)
UTG folds, MP calls $0.25, CO calls $0.25, <font color="red">BTN raises to $2</font>, Hero calls $1.90, 3 folds

Flop: ($4.75) 8[img]/images/graemlins/spade.gif[/img] 5[img]/images/graemlins/diamond.gif[/img] T[img]/images/graemlins/heart.gif[/img] (2 Players)
<font color="red">Hero ???????</font>,