Your father, Jose Emmanuel, is having, what you call a "cupid's arrow struck" moment when he saw your mother, Kiyoko, in her old yukata. He thrills and whistles at her, which causes her to blush deeply, hide her face behind her fan, and shyly walks back to their bedroom to change, but he pulls her back and flirtatiously whispers to her, "now that's a dangerous move, mi amor~ I'd prefer you don't go somewhere I can lock us up alone together~", making her gasp and her whole body blushing red.

Your father has always been stupidly in love with your mother despite all these decades and already have like...what, 8 children with another one on the way? You don't know what's gotten into them, but he always said he knew right away Kiyoko was his soulmate when they met, but your mother always said that he was so stupidly persistent to the point her father (your grandfather) had to fest up and approve their marriage so Emmanuel can stop serenading to her every night during his courting attempts.

Your parents are so ridiculously in love...that it's both sweet and gross.