I've made a post like this before, but i just got critisism instead of ideas. I'm hoping it will be different this time.

My girlfriend loves it when I'm dirty, but I'm running out of ideas.
I like cumming on her & licking it off, I like licking her butt hole, I like strangling her & being strangled, I like being spanked & spaking her. I also like putting my tongue into her butt.

I want something that feels really good but is the ultimate in dirty things. We're not into peeing or pooing on each other so that's out of the question.

What dirty stuff can we do?
I wanna do everything with/to her. The dirtier it is the more it turns us both on.
I want my animal desire to take over, I want her to slap my face & make me hurt. I want to slap her & squeeze her. I want her to do my ass with a strap on really hard.

Please help.
Thank you.