huh?
this is a simple yes/no question.
obviously this is a yes and you would get fucked in the ass by your gf.
If I said to you, anyone who has ever cared about you will die, you will be bankrupt with no more than a dollar at any given time, and you will no longer have the use of your legs or you can choose to let your girlfriend have her perversion, I think you would take the second one.
Any rational person certainly would.