Eventually, a potential homebuyer, Serene Siren, walks in early and is surprised to see Alison masturbating. Serene can't help but watch as Alison continues to touch herself. When Alison realizes Serene is there, she is very embarrassed and apologetic.
Serene says she actually liked what she saw, and playfully says that she's VERY particular about where she can get off, so she wouldn't mind masturbating too as a 'test run' to make sure the house is a good fit for her. Alison is relieved, and they masturbate side-by-side, which eventually leads to playful sex!