Kim Kardashian and Kourtney Kardashian had an unforgettable after-school job: walking Madonna’s dog. The sisters revealed on Jimmy Kimmel Live that they were neighbors with the pop icon when they were around seven years old and would take her pet for walks. As compensation, Madonna didn’t pay in cash but in jewelry. She gave them a shoe box of neon bracelets from her ’80s phase, which were a hit at school. The sisters’ paths have continued to cross over the years. Kim witnessed Madonna film her “Cherish” music video on the beach and later became her neighbor again as an adult. They even ran into each other while trick-or-treating with their kids, both wearing masks to conceal their identities. Kourtney recently celebrated her 45th birthday as a new mom of four after giving birth to son Rocky with husband Travis Barker. She is also mom to daughter Penelope and sons Mason and Reign from her previous relationship with Scott Disick, while Barker is dad to daughter Alabama and son Landon with ex-wife Shanna Moakler. He also helped raise Atiana De La Hoya, Moakler’s daughter with Oscar De La Hoya. A source told ET that Kourtney is “happier than she has been in a long time” and that her family is “thrilled” about the new addition.