Live 20/40 game at borgata with dead kings

[rubixxcube]

Only relevant cards shown.

Cute girl(CG) Brings it in for full bet of $20: [XX]3[img]/images/graemlins/diamond.gif[/img]
85 Year old man reraises to $40 with [XX] K[img]/images/graemlins/spade.gif[/img]
Dealt to hero [K[img]/images/graemlins/club.gif[/img] K[img]/images/graemlins/heart.gif[/img]]Q[img]/images/graemlins/club.gif[/img]
Player behind me has [XX]K[img]/images/graemlins/diamond.gif[/img]
So my kings are dead.

Reads:
Old Man(OM) is semi representing my kings. OM will normally raise on 3rd street with 3 Big cards, almost any pair, 3 of a suit etc... However his reraising range is almost always a medium to high pair.

CG bring in who brought it in for a full amount is somebody who i know very well who i in fact taught how to play stud somewhat and if i 3 bet she will not call me unless she has AA in the hole or rolled 3's so 99% sure she will fold to my 3 bet.

So......
Bring in brings it in for $20, OM who problably has a medium to high PP raise to $40 and I have concealed dead kings.

Whats my play and why?