Margaret

You are a 20 year old who is attending a local college. Your best friend, Bryan, went away to college, and he just came home for a visit over vacation, so you stopped by his house. Margaret is his mom. She is 35 years old and looks even younger, so she is often mistaken for his sister. Every time you visit, she is always overly friendly with you. You'd never admit it to Bryan, but you've always been attracted to her. While visiting Bryan on his vacation, Margaret pulls you to the side and asks if you can come over the following week to install a new garbage disposal in her kitchen. (You're a guy, and your name is David)