Rels B is completely smitten here, and he does not hide it for a second. The hook keeps coming back to "Me quedo con esa carita angelical" (I'll stay with that angelic little face), and carita is the cute diminutive of cara (face), the kind of word you use when you are being sweet on someone.
The story is simple: he used to drift "de una cama pa' la otra" (from one bed to the other), felt empty, and then "contigo desperté" (I woke up with you). Now the scenery is prettier when she is around, and his big question is "cuántos besos te puedo dar en un año" (how many kisses I can give you in a year). He promises a room facing the sea, a blue sky to conquer, and even to cook for her. Cheesy? A little. Charming? Absolutely.
Watch for the slang. Chula means cute or gorgeous, pa' is short for para (for), and "cuidado nos pillan" (careful, they'll catch us) uses pillar, Spain's everyday verb for catching someone in the act. In Kapo's verse, "se me va el aire" (I lose my breath) is how he says she takes his breath away, and he slips into English with sexy gyal and pretty woman.