double damage from Power Attack while grappling?

[GlassJaw]

First off, I'm pretty sure that you don't get double damage if you use Power Attack while grappling (even though you technically use two "hands").

Is there a feat anywhere that lets you do this? What about a feat like this:

Power Grapple

Prerequisite: Improved Grapple, Power Attack.
Benefit: If you use Power Attack while grappling, you add twice the number subtracted from your grapple checks.

Thoughts?

 

[kjenks]

You could invent that feat, of course, but by the rules, you don't get 2x damage bonus from Power Attack when grappling.