How to ask to get nasty with coworker?

I have this friend that I work with and we are constantly always flirting and have hinted at hooking up a few times but it's all just been talk for now. Now I was wondering if anyone would have any advice on something that I could say to get her wanting to do some nasty stuff at work, maybe like a clever line or something that could get us making out at work or something.

thanks in advance for any advice.
How to ask to get nasty with coworker?
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