Just like that, Sebastian and Santiago are now 19.
The twin sons of actor and restaurateur Marvin Agustin celebrate their birthday on Thursday, August 15, 2024.
Marvin puts out a video of their celebration on Facebook, capturing the former matinee idol attempting to sing the traditional "Happy Birthday" song despite one of his sons' objections.
A chocolate cake and a bottle of wine are visible on the table.
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At one point, Marvin playfully blows out the candle, prompting his son to tease him with a remark: "It's not your birthday!"
Read: Family matters: Marvin, Sebastian, & Santiago
Marvin's caption reads "19 na" and "Minsan na nga lang ako makakanta, bawal pa!" with a laughing emoji.
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MARVIN REMANS FRIENDS WITH HIS KIDS' MOM
Sebastian and Santiago are Marvin's sons with ex-girlfriend Tetet Dy.
The boys are actually fraternal twins, but people have always thought they are identical.
"Actually, pag pinagmasdan mo, iyong medyo payat ang mukha, si [Santi] iyon. Iyong bilog na bilog ang mukha, si Seb," Marvin told YES! Magazine on its December 2006 issue.
"Nagkataon lang na pareho silang lalaki. Pero fraternal sila."
Marvin and Tetet have an amiable co-parenting set-up.
The actor told YES! Magazine in June 2007: "Hindi na kami gumawa ng isyu o nagpaapekto sa mga intriga para na lang sa mga bata.
"Ang importante sa amin, at least dalawang pamilya ang nagmamahal sa kambal."
Read: Marvin Agustin open to the idea of marriage; happy with just two kids
He repeated this shared outlook in a conversation with PEP.ph (Philippine Entertainment Portal) in July 2012.
"Hindi na nga natin nabigyan ng perpektong… or iyong set na the usual, huwag na nating pahirapan pa ang buhay nila," Marvin said.
"That’s what we promised with each other, we will remain friends."