It's comparable to female to male spousal abuse. You think it is not feasible, but it happens more often than you think.
At gunpoint, I would initially think twice about doing anything until I have time to access the situation.
It would be kind of hard to get raped (no pun intended) the tradional method when a female is attacking a male. The male of course, has to be arroused in order for vaginal or anal penetration to occur. But, perhaps there are other less familiar ways that attacking women will use their men to achieve personal satisfaction.