Sex is a enjoyable act between consenting adults, embarrassment can be a very endearing quality. I worked in a 24hr store in my early twenties and the guys who worked in a near by factory would come in around 3am to buy 'lunch' they thought it was a great laugh to ask for sexual favors I would go bright red and get embarrassed. One night a new security guard started and after the first few guys had started their nightly teasing he started hovering near by. He later told me that he found himself drawn to me as soon as he saw my cheeks flush red.