When I was fifteen or sixteen or seventeen my Catholic high school had a mandatory school assembly. A guest speaker came to tell us all about sex. He asked a group of students to stand in a line. He unwrapped a piece of bubblegum and gave it to the first girl in line. She chewed it for a moment before he asked her to spit it back out into his hand. She did. He offered it to the next person in line. He politely declined. The speaker said, this piece of gum is like your virginity. You only get to chew it once. After that, no one will want it. No one wants a piece of gum that’s already been chewed up and spit out by someone else.