NL10 - flopped 2 pair facing turn minraise

[choccypie]

Villian is 56/12/0.6 over around 100 hands. I haven't been playing too many hands, BB is fairly tight at 15/10/2.4 so I wasn't expecting him to take part in the action.

PokerStars No-Limit Hold'em, $0.10 BB (6 handed) Poker Stars Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

Hero ($10)
SB ($9.85)
BB ($27.75)
UTG ($10)
MP ($6.60)
CO ($13.45)

Preflop: Hero is Button with 4[img]/images/graemlins/heart.gif[/img], A[img]/images/graemlins/diamond.gif[/img].
<font color="#666666">3 folds</font>, <font color="#CC3333">Hero raises to $0.4</font>, SB calls $0.35, <font color="#666666">1 fold</font>.

Flop: ($0.90) A[img]/images/graemlins/club.gif[/img], K[img]/images/graemlins/spade.gif[/img], 4[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
SB checks, <font color="#CC3333">Hero bets $0.75</font>, SB calls $0.75.
<font color="blue">Flopped 2 pair, villian checks, but board is quite drawy so I bet for value and to charge any draws. He thinks about it and calls. </font>

Turn: ($2.40) 5[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
SB checks, <font color="#CC3333">Hero bets $2.1</font>, SB raises to $4.2, <font color="#CC3333">Hero calls/shoves/folds?</font>
<font color="blue">Not sure what he could be minraising with... AA/KK/AK are highly unlikely as he would've given me some sort of a minraise preflop or on the flop. Turn doesn't complete any straight or flush draws, and if he still had a FD/SD on the turn I'd expect him to call given his stats. He could have 2 pair A5/A4/K5/K4/54 or a set 44/55.</font>

Am I ever ahead in this spot? [img]/images/graemlins/confused.gif[/img]