NL 10 KJo UTG flop TP

[hobbes1]

BB 10.15
Hero 5.95
CO 10.08

PF
Hero JsKc, CO raises to $.55, BB calls, Hero calls

Flop
4 7 K rainbow
BB bets 2, Hero calls, CO calls

Turn
3c
BB bets 4, Hero All in, CO raises All in, BB calls

River
Ah

CO was an agressive player showing down alot of weak hands. Should i pushed all in on the flop. I was afraid of being outkick from previous hand with BB. Any suggestions on playing this hand better or should i fold PF?