"My biggest flex is being a sober dad," the MTV star penned with the snap of himself and his offspring snuggled up on the couch.
The heartwarming admission comes as Sorrentino and his wife, Lauren Sorrentino, 38 — with whom he also shares daughter Mia Bella, 10 months — recently announced they are expecting their third child together next year.
"Good things come in threes," the happy couple — who married in November 2018 — wrote in the post, revealing their impending arrival. "Adding another pumpkin to our patch 🙏🏼 Baby #3 coming March 2024."
"I sometimes like think about it, and I'm like, 'Oh my god, like, I can't believe I've come so far.' And then I look in the mirror, and I'm like, 'Wow, I'm just a tough son of a b----,'" he explained in an interview earlier this year.
"I mean there are always temptations, but when you have the secret sauce, when you have the blueprint of what's working, you never fall away from that, you know? You stick to what's working and what's working for me is God and family," he said of his wife and children.
Being the leader of his family has made the reality star focused on what matters in life despite sometimes being put in tempting situations.
"I'm a dad first, I'm a husband first, my sobriety [comes] first. And sometimes, when I'm dealing with the cast and those type of those situations, it's not easy," he explained of filming JSFR while staying clean. "I'm also trying to entertain millions, so it's a very fine line I have to walk sometimes. [But] I'm a champion of addiction today. And I wear that on my sleeve."
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"I'm eight years clean and sober in December, a dad of two adorable babies and married five years and in a happy, healthy marriage," Sorrentino added of where he is now. "I'm living my best life and teaching others to do the same."
Entertainment Tonight conducted the interview with Sorrentino.