Bella Hadid and mom Yolanda Foster channeled "Baywatch" while sitting poolside on Sunday. The 18-year-old model and 51-year-old reality star posed back-to-back in similar red swimsuits for a new photo. Hadid shared the picture on Instagram, writing, "Mommy n meee day Home is when I'm with you my [angel] @yolandahfoster." Hadid is the second eldest child of Foster and Mohamed Hadid, who were married from 1994 to 2000. The model is sister to 20-year-old Gigi Hadid and 16-year-old Anwar Hadid, and Foster is now wed to musician David Foster. All three of Foster's children reunited that day to spend time with their mother. The reality star posted a snapshot of the trio, writing, "My loves, My life, my reason for living........ @gigihadid @bellahadid @anwarhadid #PerfectDay." Hadid and Gigi Hadid both model, and recently appeared in a sisters-themed Balmain campaign with Kendall Jenner and Kylie Jenner. Foster herself modeled when she was younger, and joined Bravo's "The Real Housewives of Beverly Hills" reality series in Season 3.