KQ top pair hand

[21times20]

SB is 45/15/1.5 over about 45 hands
PokerStars 2/4 Hold'em (6 handed) FTR converter on zerodivide.cx

Preflop: Hero is Button with K[img]/images/graemlins/diamond.gif[/img], Q[img]/images/graemlins/spade.gif[/img].
UTG calls, 2 folds, Hero raises, SB calls, BB calls, UTG calls.

Flop: (8 SB) T[img]/images/graemlins/diamond.gif[/img], K[img]/images/graemlins/heart.gif[/img], 6[img]/images/graemlins/diamond.gif[/img] (4 players)
SB checks, BB checks, UTG checks, Hero bets, SB calls, BB folds, UTG calls.

Turn: (5.50 BB) 7[img]/images/graemlins/club.gif[/img] (3 players)
SB checks, UTG checks, Hero bets, SB raises, UTG folds, Hero calls.

River: (9.50 BB) 4[img]/images/graemlins/spade.gif[/img] (2 players)
SB bets, Hero calls.

Final Pot: 11.50 BB


when i get raised on the turn im almost certain im beat but i call down anyway, certainly didn't feel like i played it right

should i just accept that im beat and fold when raised on the turn or call trying to hit one of my 5 outs at 8.5/1 and fold unimproved on the river?

or is it possible he has a weaker king and/or is trying to snap off what could appear to be continuation bets often enough to justify my calldown?