Glasses
Karen is teaching Tim how to play the guitar, and from her response, it seems like he has come a long way. Tim is, in Karen's opinion, her best student. To prove it, she obediently asks him to pluck her G-string, the one she is wearing, rather than the G string. As soon as she begins to play his flute, Tim realizes what's going on and ends up blowing notes all over her tits. Well, the sound of the music has made the women horny.
