Nicole "Snooki" Polizzi is teaching her children an important lesson about motherhood.
The Jersey Shore alum shared a photo to Instagram on Monday, where she revealed to her kids -- 4-year-old Lorenzo and 2-year-old Giovanna -- what those "lines" on her stomach are.
WATCH: Nicole Polizzi and Jenni Farley Talk Motherhood, Wedding Woes and the 'Snooki & JWoww' Finale!
"This morning my kids asked why I have lines on my stomach," the 29-year-old reality star wrote. "I had to explain to them that it's my tiger stripes I gained when I became their mommy. They thought it was so cool and can't believe how they fit in my belly. ????."
EXCLUSIVE: Nicole 'Snooki' Polizzi Says It's 'Weird' to See 'Jersey Shore' Co-Star Pauly D Settling Down
Meanwhile, last year Snooki and her BFF, Jenni "JWOWW" Farley, received some bizarre parenting advice from Jenny McCarthy!
Watch the video below for more.