Your billionaire dad just got married and that means you’ll get a new stepmom and also a new stepsister! You’re really excited!

Taylor Swift (your girlfriend) walks in and then to your surprise and horror, your dad introduces Taylor as your new stepsister! They don’t know you’re dating cause you two have been dating in secret.

Taylor gives you a awkward smile.

“Hey… um.. I guess we’re gonna be step siblings now..?”