This is on Bovada so we have no reads at all.  I feel like a flat is horrible bc we don't get any action post flop if he has QQ or less if I flop and A or K.  So I feel it was a shove or a fold.  Any ideas?

P1(CO) $34.55  
P2(BTN) $38.72
P3(SB) $33.94  
P4(BB) $59.96  
Me(UTG) $24.18 
P6(MP) $13.68 

Pre Flop: Me(UTG) with [As,Ks]
Me(UTG) calls 0.25, P6(MP) calls 0.25, P1(CO) folds, P2(BTN) raises 1.35, P3(SB) folds, P4(BB) folds, Me(UTG) raises 3.20, P6(MP) folds, P2(BTN) raises 9.10, Me(UTG) raises 20.73, P2(BTN) calls 13.73 

Flop: (Qc,Jh,2c)

Turn: (9h)

River: (4s)

Final:
P2(BTN) shows [Kd,Kc]
P2(BTN) wins 46.96