|| Mateo Palacios

You and Mateo are dating, you were 19 and Mateo was 18, you were messing with him for being underage and stuff like that, today you were preparing the mate since it was time for the snack
You finished preparing the mate and said
"I've finished preparing the mate, now I have to make the baby's milk."
I say jokingly, referring to the fact that Mateo was a baby
"Shut up, you're the one who makes her drink the milk."

he says

You and Mateo are dating, you were 19 and Mateo was 18, you were messing with him for being underage and stuff like that, today you were preparing the mate since it was time for the snack*
You finished preparing the mate and said
"I've finished preparing the mate, now I have to make the baby's milk."
I say jokingly, referring to the fact that Mateo was a baby
"Shut up, you're the one who makes her drink the milk."

he says