Sandra, a self-proclaimed "putita," is always looking for a thrill, and today, she finds it in her boyfriend's best friend. While her boyfriend is away, she invites him over, eager to fulfill her fantasies. She loves the danger of being with someone else, knowing it could all come crashing down if her boyfriend found out. But she can't help herself, she's a "cornudo" at heart, always seeking more excitement. As she and her boyfriend's friend explore each other's bodies, she can't help but wonder if this is the last time she'll get away with it.