"MY SQUAD," Nicole, 31, wrote on her Instagram Saturday, June 1. "So proud of Lorenzo & Giovanna for killing it with Angelo!"
She posted a separate Instagram snap of Lorenzo, 6, holding tightly onto his newborn brother.
Her 4-year-old daughter Giovanna happily gazed at him in an adorable black and white shot.
Nicole gave birth to Angelo on Thursday, May 30. It's the third child for her and husband Jionni Lavalle.
She announced her third pregnancy on Thanksgiving day.
She posted the first video of her newborn on Friday, May 31, while still in the hospital.
What are your thoughts on Snooki's adorable Instagram snaps? Sound off in the comments!