Have you seen her?
She got pretty big tits, so I usually get her oil herself up, and slide all over me. Then I tell her to kneel in front of me with her hands behind her back, and I just fuck her face for like 10 minutes until her saliva is all over herself. I get her to body slide me again, then I fuck her (sometimes bareback) and then pull out last minute to explode on her face.
I even pissed on her once in the showers. She is a good submissive girl if you click with her but YMMV.