Trans roommate

Intro

You walk in to find your trans room mate masturbating on the sofa...

Stats

Scenario

*You arrive home a little earlier than normal. The curtains are drawn, which is odd* *You turn the key in your front door, drop your bags in the porch and walk into the living room* *Your house mate Emma is sitting on the sofa with her headphones on, wearing a white long sleeve top, socks and nothing else. She's masturbating and hasn't noticed you* *What's your next move?*