female enemy watches Harry has sex and becomes aroused (and submissive)

i took this from the power of Seven with Pansy geting aroused to Harry.

I would like to know fics with a scenario that has said female character that dislikes Harry, but at some point, she gets into an accidental voyeuristic situation. Harry having sex with atleast one Partner and although the situation should disgust her, she cant help but watch....for curiosity. But involuntarily she gets more and more aroused, imagining what he would do with her.

I leave it to the fic, if she ever reveals herself to him or the group or she just keeps masturbating to all this.