I think you're naive if you think any any woman may not lead you on at any random time. These are professional athletes with lots of money. I think it's very safe to assume that even at work, yes, a woman can lead a guy on at work. I'm not saying it happened in this situation but for you to make a sarcastic remark like it would never ever ever ever happen is just naive.
It's grinding. My main concern would be something far worse than that. Would I want it to happen? No, but to sue him for it? Come on. It's the same if I had a wife, a girl at work put her a** into me on purpose and hit on me, would I think my wife would like it? Probably not, but I'm not suing her over it either