The Jersey Shore star announced her engagement to Jionni last March and she later gave birth to their first child, Lorenzo Dominic, in August.
So yesterday (16 June) proved to be a cherished occasion in the couple's household, since Lorenzo had never celebrated a Father's Day before and he even had his grandpa on hand for some extra cuddles!
Snooki's dad stopped by to see his daughter and grandson for the day and looked pleased as punch to have them both by his side.
Showing off her freshly dyed red hair, Snooki posted a photo of herself with her old man, while he clutched onto Lorenzo's pushchair.
She accentuated her trim new figure in the snap by wearing a black cropped top and a zig zag print maxi skirt - an ideal outfit choice for lounging around at home with the family.
Meanwhile, Jionni couldn't stop smiling, as he cradled Lorenzo in his arms for another cute picture by the swimming pool.
Snooki, 25, uploaded the snap along with the caption: "My family happy Father's Day to my amazing man @jlavalle5"
During the day, Jionni also took a moment to acknowledge all the other proud dads who were in his position by tweeting: "Happy Father's Day my fellow fathers!!"
Snooki then posted a couple more pictures of herself and Lorenzo playing together later in the evening, which we can't stop cooing over. Just look at that smile!
What do you think of Snooki's fiery red hair? Let us know below!