(NEWSER) – There may be something in the water in Clevedon, England. Melanie Gwynne is a twin. Her father and his mother, Gwynne's grandmother, are also twins. And last fall, Gwynne became mom to the family's fourth generation of twins—two girls, whose birth was featured on the British TV documentary One Born Every MinuteWednesday. "My dad always said it's more fun having two. I'm still getting my head around all the kids at the moment,” the new mom tells the Bristol Post. Her father has already contacted the Guinness Book of World Records—but he should know that a Kansas family can also declare the same feat as of December. According to their doctor, the chances of having four consecutive sets of twins in your family may be as low as one in four billion. Nonetheless, Gwynne hopes one of her twins has twins herself.