Look at that face, the pain and pleasure. Do you know what's happening to her right now? That's right, she's being penetrated by a massive cock. Something you can never do. Hell, even dreaming of it is ludicrous for you. So where are you in this scenario?
Hmm maybe in a corner stroking? Hidden in a closet, so the man isn't embarrassed about your small size? Or even better, laying under her, your face inches from their sex. That's what I see. It's soo perfect, think, when he's done pumping her full of cum she can just sit down on your face for a cleaning. Who knows, if you have any value at all maybe you can get her to orgasm on your face in the process!