You make your move on Buffy.

Entering the library right behind Buffy you quickly make up your mind and use your power before you chicken out.

"You know Buffy it's normal for you to thank me for helping you by getting naked in front of me and letting me do what I want to your sexy body." After saying that you watch her nervously hoping that your power will work on her, nervous that it wouldn't work due to never using it on a slayer before.

"Huh oh sure sorry I totally forgot about that," Buffy replied as she started to strip off her clothes.

Grinning in excitement and triumph you watch in awe and lust as Buffy Summers the greatest slayer to ever live falls under your control and does what you want. Watching this and taking it in you can't help but wonder what you will do next with Buffy under your control all worries that you had seem to just vanish.