A shortstack decission

[stokken]

PS 55 r, blinds are 100/200

I am on button, just lost a good portion of my chips charging a flush draw which completed, and I am down to T1900. my hand is KK [img]/images/graemlins/heart.gif[/img] [img]/images/graemlins/diamond.gif[/img]

Semi loose opponent with big stack raises from ep2 to 500

Folded to me. I know bb to be loose in his play from bb and likely to call with Ax, x being low, and any broadway, any suited and any connectors, 1gaps and 2 gaps. If he raises I dont mind.

Do u just call to the chanse of trippling up if he comes along( just doubling is fine, but still very shortstacked compared to the average stack around the table)or do u push?