Bilingües means "bilingual." While it might seem straightforward, in the context of this song, it takes on a playful and intimate double meaning.
Lasso sings about wanting to "volvernos bilingües" (become bilingual) by kissing. He's not just talking about speaking two languages; he's using it as a metaphor for two people from different linguistic backgrounds connecting deeply and understanding each other through physical intimacy, transcending language barriers.
"Bilingües" is Lasso and Mau y Ricky's version of a very specific kind of relationship trouble: falling for someone who doesn't speak your language. It opens on a memory, "Recuerdo cuando me dijiste 'Babe, I don't speak Spanish'" [I remember when you told me "Babe, I don't speak Spanish"], and an honest confession right back, "Y yo que necesito alcohol para hablar en inglés" [And I need alcohol to speak English]. None of that stops the two of them from ending up together that same night: "Esa noche nos comimos como animales" [That night we ate each other like animals].
The chorus turns "I love you" into the song's real problem. Said in a language he's still learning, he can't be sure if it's true or if something got lost on the way: "No sé si estás jugando con mi corazón / O solamente es una mala traducción" [I don't know if you're playing with my heart, or if it's just a bad translation]. His solution, by the bridge, skips the vocabulary lesson entirely: "Pegar tu boca con la mía y volvernos bilingües" [Put your mouth to mine and become bilingual]. Then he begs in both languages at once, mid-sentence: "Please don't go, dame un chance, let me know" [Please don't go, give me a chance, let me know].