Refuse.

Even if you die, you hope to die with your ideals intact. She presses her ass down harder, pushing the back of your head into the ground. The pain becomes unbearable, but you know the pain of humiliation is far worse. You may be a loser, but you won't degrade yourself.

"Aww... how cute. Defiant 'till the end, huh? I can respect that."

She presses her ass harder into your face and everything starts to fade. The sound of her voice grows quieter as your body is sapped of strength.

"Sshh... that's it. Thaaaat's it. It'll all be over soon...."

You try to tell yourself that you at least went out with your dignity, but your final thought before losing conciousness is that being smothered to death under your opponent's ass is probably not a very dignified way to die.