AP .25/.50 - donk bet on the river

[alex-star]

The villain just sat down at the table. How's my line? Can I call this river? Is this ever a set given the turn check?

Absolute Poker
No Limit Holdem Ring game
Blinds: $0.25/$0.50
9 players
Converter

Stack sizes:
UTG: $38
UTG+1: $14.20
MP1: $42.95
Hero: $48.80
MP3: $45.75
CO: $52
Button: $40.25
SB: $24.21
BB: $60.05

Pre-flop: (9 players) Hero is MP2 with J[img]/images/graemlins/spade.gif[/img] J[img]/images/graemlins/diamond.gif[/img]
2 folds, <font color="#cc0000">MP1 raises to $1.5</font>, Hero calls, MP3 folds, CO calls, 2 folds, BB calls.

Flop: 6[img]/images/graemlins/spade.gif[/img] 3[img]/images/graemlins/spade.gif[/img] 4[img]/images/graemlins/heart.gif[/img] ($6.25, 4 players)
BB checks, <font color="#cc0000">MP1 bets $1.5</font>, <font color="#cc0000">Hero raises to $5.5</font>, CO calls, BB calls, MP1 folds.

Turn: 7[img]/images/graemlins/diamond.gif[/img] ($24.25, 3 players)
BB checks, Hero checks, CO checks.

River: T[img]/images/graemlins/diamond.gif[/img] ($24.25, 3 players)
<font color="#cc0000">BB bets $15</font>, Hero ??