It was Gwen. She had returned home after hanging out with some friends of hers and spotted his vehicle parked near the gate.
However, when she came inside the house, no one greeted her; only absolute quietness was prevalent throughout the place, which was why she thought that maybe Lucifer went upstairs by himself and decided to wait in her bedroom.
On the other hand, Vivian's body tensed as fear ran throughout her system thinking about being caught naked with the presence of her daughter's boyfriend inside her bedroom.
Lucifer noticed Vivian's sudden discomfort upon hearing Gwen's voice and decided to act before any misunderstanding occurred between the mother and daughter.
"Yes. I am over here, in your mother's bedroom." Lucifer shouted back before giving a reassuring nod towards Vivian and walking out of the room while closing the door behind him.