I have not idea about this show and never even heard of it.
I've been a player in the swing scene for a very long time, bulled wives and had numerous flings and one nighters.
Sure over the years I've knocked up many women who have been in relationships of their own, in certain situations I've had nothing to do with said offspring but others I have.
DNA tests, nope, never come to that and wouldn't be interested in taking part in one.