Pot unexpectedly huge with AK (so I crawl into a hole)

[DontRaisePlz]

PokerStars 1/2 Hold'em (9 handed) converter

Preflop: Hero is MP1 with K[img]/images/graemlins/heart.gif[/img], A[img]/images/graemlins/diamond.gif[/img].
UTG calls, UTG+1 calls, <font color="#CC3333">Hero raises</font>, <font color="#666666">1 fold</font>, MP3 calls, CO calls, Button calls, SB calls, BB calls, UTG calls, UTG+1 calls.

Flop: (16 SB) 4[img]/images/graemlins/club.gif[/img], Q[img]/images/graemlins/spade.gif[/img], J[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(8 players)</font>
SB checks, <font color="#CC3333">BB bets</font>, UTG folds, UTG+1 calls, Hero calls, MP3 calls, CO folds, Button calls, SB calls.

Turn: (11 BB) A[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(6 players)</font>
SB checks, <font color="#CC3333">BB bets</font>, UTG+1 calls, Hero calls, MP3 calls, Button calls, SB calls.

River: (17 BB) A[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(6 players)</font>
SB checks, <font color="#CC3333">BB bets</font>, <font color="#CC3333">UTG+1 raises</font>, Hero calls, MP3 folds, Button folds, SB folds, BB calls.

Final Pot: 23 BB

I don't expect that kind of preflop looseness at a Stars ring game, table stats werent that high either. I just didnt know when to throw in a raise. Should I raise the turn to clean up my king outs? Raise the river with TSTK? River raiser is a newb who was involved in a terrible hand just a second ago so I disregarded him.