Hope the new update lets you avoid that, losing your virginity to Christie of all people is a little underwhelming. She's an interesting character but so early on you can't help but view her as 'just a stripper who's connected to Ella.'
You can also lose your virginity to Liz if you do her route fast enough. (well you can also technically lose your virginity to the zombie girl but.... well I personnaly consider that worse than losing it to Christie)