My girl told me she loved being used and degraded [MF]

A little intro for you guys to visualise better:

Her: 25, 5 foot 4, Asian, bob haircut, slim, athletic figure, small tits, perfect lips.

I first found out about her kink about five months into our relationship. She was sucking my dick pretty vigorously when she gagged and started tearing. I immediately pulled out and asked if she was alright, to which she replied that she wanted me to “use her face like a pussy” and “treat her like a piece of trash”. Her words, not mine.
Over the next few months I got more comfortable with being rough with her, and realised I was really into it too. I also learnt she had a kink for bondage and public humiliation, which she’d never actually dared to fulfil.

The perfect opportunity came when I invited two of my friends over to watch a game. She’d initially planned to go out with her girlfriends, but they cancelled last minute, leaving her all dolled up with nothing to do.