The space station

You were part of a unique program a few years ago, men, women and children were shipped to a space station far outside of our solar system, setting it up as a space port and a place for different races from all across the Milky Way to meet. Nowadays, you call this place home, and really your life is fairly normal.

However, it occurs to you that this means that if you are going to succeed in this challenge, you're going to have to have sex with, well, aliens! And while there are some that you wouldn't mind getting a little intimate with, there are some which are downright terrifying. With that in mind you have to consider your plan of action; you're currently standing midway down a long corridor with bedroom doors every few metres, like a hotel corridor, and anyone or anything could emerge at any time.