Trips with K kicker, Is this hand an easy fold?

[RoundersRocks!]

Hero is dealt 10 [img]/images/graemlins/heart.gif[/img] J [img]/images/graemlins/spade.gif[/img] K [img]/images/graemlins/heart.gif[/img] K [img]/images/graemlins/spade.gif[/img] on the button.

Hero has 51.00
Villian has 70.00
Villian is a solid but not impressive player.

Party Poker .50/.1.00

EP raises to 4.50
EP2 calls 4.50
Villian calls 4.50
Hero calls 4.50

Pot is 18.00

Flop: J [img]/images/graemlins/heart.gif[/img] J [img]/images/graemlins/diamond.gif[/img] 2 [img]/images/graemlins/club.gif[/img]

EP checks
EP2 checks
Villian bets 18
Hero?

This is another situation where I felt like folding was too weak of a play and calling or raising was leaving myself completely vulnerable to the AJ. I can't do anything to get any more information since anything other than a fold basically pot commits me all the way. All thoughts appreciated.