Because like most of what this clown is saying and doing, it's BS.
You know, all those back dated first tmes,real sisters, virgins or whatever stories this fraud of a producer is inventing.

Twins don't have different size, body shape and face like these gilrs. Check some pictures. He just got two girls that were somehow resembling, and of course : "twins !"

Everybody's making jokes at this dude nowadays in the euro porn industry. He's comedy material.