The Master grins wildly when he hears the Doctor screaming at the door. He begins laughing maniacally.
"It's amazing isn't it? Look at that timing! Only from the Doctor!" He says to Jenny, not that she is doing anything other than screaming.
He flicks his screwdriver towards the device and Aerodynamic by Daft Punk begins blasting (even managing to drown out Jenny's screams). He starts dancing, and switching his aim towards the door mid-dance move he blasts it open with his screwdriver.
"Come in Doctor!" He yells towards the door. "You're just in time for the party!" He brushes Jenny's hair back, feigning gentleness. "Jenny is already enjoying herself!"