I say enjoy the show but don't take the bait.
Look if she want's to show for whatever reason look and compliment her, IF it comes to a heated moment just tell her you are VERY flattered and would love to hook up if it was a different time and you were single. Then RUN to the cold shower and you will hate yourself for denying it but in the long run it will be better. Best part is that if you and your SO don't last down the road you can get with her.