"Hasta Los Dientes" by Camila Cabello featuring Maria Becerra is a song about jealousy and possessiveness in a romantic relationship. Camila and Maria sing about their unrequited love for their partners and how their partners' past relationships haunt them. They are consumed with thoughts and fantasies of their partners being with their ex-lovers, which causes them emotional distress. The chorus emphasizes their desire to have their partners all to themselves, without the involvement of anyone else. Camila and Maria also express how painful their obsession is, to the point where they ache even in their teeth. In summary, the song highlights the negative consequences of jealousy and possessiveness in relationships, and how these feelings can consume a person to the point of emotional pain.