Cara falls asleep in Mark's bedroom, and Sandy suspects that they had sex. She doesn't believe Mark's protests, thinking she knows the "truth." This episode follows the old saying don't judge a book by its cover. Sandy does learn this lesson when she is found in a compromising position with Cara's father.
This episode, when compared with an earlier Valerie episode with Dave, shows the movement from an adult audience to a teen audience. This episode seems to demonize sex for teenagers, as Sandy vilifies Mark for his supposed actions. The earlier episode with Valerie finding Dave's condoms showcases a different message: sex is natural but a responsibility that you shouldn't take lightly. In the end, Sandy learns to trust Mark, and Mark proves that he is trustworthy teen following the right path. This episode was a little sugary for me. It lacked the realism of the earlier episode.