It was a weekend under the sea for two very adorable celeb kids.

Your first cousins are usually your first best friends! Check out the top ten cutest moments from 2-year-old North West and 3-year-old Penelope Disick.

Your first cousins are usually your first best friends! Check out the top ten cutest moments from 2-year-old North West and 3-year-old Penelope Disick.