Justin Hunt walks in on his stepsister Avi Love hanging out with her friend Kat Monroe. Kat is totally into Justin, flirting with him while Avi just finds herself increasingly annoyed at her brother. When Avi's back is turned, Kat takes things a step further by reaching out to start stroking Justin's hardon. Avi catches Kat in the act and flips out! She kicks her friend out, then confronts Justin in the living room.