Veneno by Junior H and Paloma Mami talks about the temptation of returning to a toxic relationship. The lyrics explore the struggles of fighting against the urge to give into desires that could lead to heartbreak once again. Junior H reflects on the past, acknowledging that he didn't appreciate the relationship when he had the chance. The song also highlights the sense of danger that comes with forbidden desires. Paloma Mami expresses remorse for still wanting to return to the toxic relationship even knowing the pain it has caused her. The chorus emphasizes the danger of such desires, comparing them to the toxicity of poison. Despite the danger, the temptation is overwhelming. Overall, the song is a cautionary tale about the power of toxic relationships and the difficulty of breaking free from them. It encourages listeners to be strong and resist the allure of old flames that may only bring pain and destruction.