It is bad to betray your siblings' trust.
Blake is hanging out at home when his sister's boyfriend Mitch flirts with him.
Blake doesn't want to hurt Mitch's feelings.
Blake turns on the television to Mitch's favorite tv show and asks him information about the characters.
Blake returns Mitch's advances allowing Mitch to kiss him.
Blake uses the information he learns from Mitch to impress another cute guy.
Blake's relationship with his sister is destroyed when she walks in on them.