5/10 Flopped toppair, river is Ao, bet?

[plzbenice]

table full of donks. wondering if i shoudl bet river here and if so pay off a raise?

if turn is a diamond i still calldown if its a bet and call to me, not if bet+raise?

Texas Hold'em $5-$10 (real money)

Seat 6: ToadofFury ($513.50 in chips)
Seat 7: Progetto ($499.00 in chips)
Seat 8: BULLMASTER21 ($278.45 in chips)
Seat 9: gotty79 ($165.50 in chips)
Seat 10: Hero [ K[img]/images/graemlins/diamond.gif[/img],Q[img]/images/graemlins/spade.gif[/img] ] ($131.00 in chips)
ANTES/BLINDS
ToadofFury posts blind ($2.50), Progetto posts blind ($5).

PRE-FLOP
BULLMASTER21 calls $5, gotty79 calls $5, Hero bets $10, ToadofFury folds, Progetto calls $5, BULLMASTER21 calls $5, gotty79 calls $5.

FLOP [board cards 4[img]/images/graemlins/diamond.gif[/img],3[img]/images/graemlins/diamond.gif[/img],K[img]/images/graemlins/club.gif[/img] ]
Progetto checks, BULLMASTER21 bets $5, gotty79 bets $10, Hero bets $15, Progetto folds, BULLMASTER21 calls $10, gotty79 calls $5.

TURN [board cards 4[img]/images/graemlins/diamond.gif[/img],3[img]/images/graemlins/diamond.gif[/img],K[img]/images/graemlins/club.gif[/img],6[img]/images/graemlins/club.gif[/img] ]
BULLMASTER21 checks, gotty79 checks, Hero bets $10, BULLMASTER21 calls $10, gotty79 calls $10.

RIVER [board cards 4[img]/images/graemlins/diamond.gif[/img],3[img]/images/graemlins/diamond.gif[/img],K[img]/images/graemlins/club.gif[/img],6[img]/images/graemlins/club.gif[/img],A[img]/images/graemlins/club.gif[/img] ]
BULLMASTER21 checks, gotty79 checks, Hero ?