On the episode where Lucy (Beverly Mitchell) is considering having sex for the first time with her boyfriend Jordan, and Mary (Jessica Biel)goes to a coed sleep-over that Annie (the mother) and Eric (the father) don't know about. And Matt is trying to think of a subject for his "sex project" for school.

In the middle of the show, Lucy and Mary come downstairs. Annie and two of her friends who are pregnant and are 16 years old are dancing to a song. Annie introduces Mary and Lucy to her friends. Lucy says, "I'm 14, and Mary is 15." Then, later on in the episode, Lucy gave Matt and idea for her project. Lucy gets upset at Matt and says, "I'm not a baby anymore! I'm 15, I'm practically a grown woman!"

So, is she 14 or 15?