Your college's library

You walk up to the librarian's desk. "Yes, how may I help you today?" She asks. She isn't old like the librarian who's usually here, so you figure she's either new or a student volunteer as she looks to be about that age.

"I need to use your PA system to make a really quick announcement." You tell her calmly. "Why of course, come right this way." She says with a smile and you give your announcement. "Everyone is now feeling incredibly horny. You will throw away any inhibitions and think that public sex is the most normal thing to do. If you are a female and not bi or lesbian, you are now bisexual. You will all strip nude and fuck as many people as you can." You announce over the intercom to the library as everyone stand up to strip and begins to fuck the person next to them.

You turn to the new librarian. "Come with me for now." You tell her and she obeys