The couples returned to the Twins Day Festival for a joint ceremony in 2017 before moving to Virginia where they live ...

"Love and twins abound! We're twins married to twins, and we've got DOUBLE DOUBLE DOUBLE the fun raising our astonishing quaternary twin sons together!" They also posted about their recent holiday ...

"I said, 'Gee, I think I'm going to marry her ... Quaternary twins occur when one set of identical twins has children with another set of identical twins. “They share DNA in the same way ...

Even in our final school exams, Hussaina was registration number 010 while I was 011,” said Hassana, adding that “for a long time, we planned to marry twins and even our family members ...

Married and baby on the way.' The 30-second clip, which was shared without a caption, left fans questioning if the twins were pregnant. Even as teenagers they spoke about wanting to have children.

Famous sisters Abby and Brittany Hensel have hinted a new arrival is on the cards - we take a look at whether conjoined twins ...