NL25 AQ vs loose opponent

[jimmyhtk]

Seat 2: kgabesz ($22.45 in chips)
Seat 3: vasten ($27.55 in chips)
Seat 4: 66jimmy6 [ QC,AD ] ($20.80 in chips)
Seat 8: selbstdreher ($23.80 in chips)
Seat 10: mcstooge ($41.95 in chips)
ANTES/BLINDS
mcstooge posts blind ($0.15), kgabesz posts blind ($0.25).

PRE-FLOP
vasten bets $0.50, 66jimmy6 bets $2.50, selbstdreher folds, mcstooge folds, kgabesz folds, vasten calls $2.

FLOP [board cards 10S,QD,5S ]
vasten checks, 66jimmy6 bets $4.50, vasten calls $4.50.

TURN [board cards 10S,QD,5S,KS ]
vasten checks, 66jimmy6 bets $7, vasten calls $7.

RIVER [board cards 10S,QD,5S,KS,7D ]
vasten bets $10, 66jimmy6 folds.

SHOWDOWN
vasten wins $37.

SUMMARY
Dealer: selbstdreher
Pot: $38.40, (including rake: $1.40)
kgabesz loses $0.25
vasten bets $24, collects $37, net $13
66jimmy6 loses $14
selbstdreher loses $0
mcstooge loses $0.15

What did I do wrong here? Should I have called his bet on the river? Should I have checked the turn? I didnt have much of a read on this guy. He seemed like a loose player.

Thx