Kerry Katona has urged Britney Spears to join OnlyFans. The 41-year-old star opened her own account on the online subscription site and app, on which she posts risqué photographs and content on the service, towards the end of 2021, and she thinks the pop superstar Britney is making a mistake posting naked snaps of herself on Instagram. Kerry thinks Britney, 40, is missing out on millions by sharing her beautiful body online for free and should definitely consider becoming an OnlyFans model, just like other stars such as Amber Rose, Bella Thorne and Lottie Moss. Writing in her New! magazine col…