KJ runner runner-what would you do?

$10 SNG 1 table. Villain is solid player (markaa65)-CallMexx is weak and not worried about him. My image is solid strong player. I've come all the way back from a stack of 200 chips. I have been studying Harrington on Hold'em and practice down on these levels.
PokerStars Game #3040852455: Tournament #15024838, Hold'em No Limit - Level IV (50/100) - 2005/11/12 - 16:18:34 (ET)
Table '15024838 1' Seat #8 is the button
Seat 1: hotelman#1 (3525 in chips)
Seat 3: wickedchris1 (1540 in chips)
Seat 4: Blobtwist (1255 in chips)
Seat 5: little momo (2960 in chips)
Seat 7: markaa65 (2740 in chips)
Seat 8: jhes (665 in chips)
Seat 9: xXCall_MeXx (815 in chips)
xXCall_MeXx: posts small blind 50
hotelman#1: posts big blind 100
*** HOLE CARDS ***
Dealt to little momo [Js Kh]
wickedchris1: folds
Blobtwist: folds
little momo: calls 100
markaa65: calls 100
jhes: folds
xXCall_MeXx: calls 50
hotelman#1: checks
*** FLOP *** [3c 4s 5s]
xXCall_MeXx: bets 200
hotelman#1: folds
little momo: calls 200
markaa65: calls 200
*** TURN *** [3c 4s 5s] [Kd]
xXCall_MeXx: bets 515 and is all-in
little momo: calls 515
markaa65: calls 515
*** RIVER *** [3c 4s 5s Kd] [Jc]
little momo: bets 600
markaa65: raises 1325 to 1925 and is all-in
What should little momo do?