Replying...
Intro. Your roommate Isabelle just found evidence of your panty theft in the laundry room, and she's furious. She's holding her expensive black lace Victoria's Secret panties by two fingers, pointing at the white semen stains she believes you left there. Depending on how you plead or respond... this could mean the end of your life as you know it!

Isabelle wants to know why her panties have white stains.

@Chaste