The man you are married to has a very poor opinion of women. His comments about girls throwing themselves at him say a lot.
The fact that there isn't just one child here raises a lot of questions in terms of who he is and what he's like.
These were women who didn't feel they could approach him or were not able to approach him. Or they did approach him and he told them to piss off.
Now these children suddenly have been able to not only identify him but also get in touch with him. That suggests that someone has done a DNA test. It might not necessarily be him - it could be a close relation, which would lead to him suddenly being identifiable.
What I find interesting in the UK is there isn't much of a fashion for doing a DNA test. It's fashionable in the US and Canada to just do them for fun. In the UK the pattern is that people tend to do them either because they are really into genealogy and do it as a hobby and want to take it further OR they do it because they want to find out something very a very specific reason involving a family mystery.
My thoughts here are that if it's him who has done a test, I'd be raising an eyebrow about the why. Unless he has a keen interest in his family history, then I'd argue that there's something more here.
It could be innocent in terms of not knowing his own parentage and wanting to resolve that.
But the fact that there's three in the equation says to me he knew there was a strong chance he had another child or was fully aware there was a child or children out there. And he was the one who wanted to find out about them.
That would raise some pretty big questions about him potentially concealing this from me.
An age gap relationship on top of this also asked so worrying questions about his attitude to women and his maturity.
I would be very worried about multiple children turning up in this scenario. The children were possibly unable to get answers from their mothers and if their mothers are a similar age to the father it's highly possible they may have died without revealing the circumstances to their children.
It may well lead to finding out a darker side to the person you love which really is unattractive. There is potential for a lot of lies to suddenly unravel.
The warning here is that when you met him he had a two year old. He was 45 when he was still shagging around and had a baby from it. That was in the early 2000s. You dismissed this as being because he was 'in a big motorbike gang in the late 60’s early 70’s' and then said 'I’m 19 years younger from the age of safe sex'.
You are missing a massive point here. Why by 2000 - the age of safeguarding sex as you put it - was he still shagging about unprotected. His attitude didn't change with the knowledge of why you should have safe sex. He knew he had shagged about that much and knowingly was still doing it, potentially putting that woman at risk from his lifestyle. And potentially putting you at risk after that.
It strikes me that his attitude is still a problem.
Your defences of him are unsurprising. You want to deny who he is because you love him and admitting the truth about him isn't something you want to do.
But as you rightly point out, it's not just about you is it? It's about how your kids will react to this and process it.
You need to be asking some hard and difficult questions because that could well be what your kids do - not necessarily straight away either.
He has had a side of him revealed which really isn't nice and shouldn't be excused by the time - especially because he continued to behave in the same manner right up until he met you.
The age gap also means you are more likely to have had the wool pulled over your eyes for a long time because age gap relationships are usually unequal in power dynamics for various reasons with the younger partner typically much more vulnerable to manipulation by the older partner.
The reason you feel uneasy isn't because these children 'are coming out the woodwork'. I note your tone of distain. It's because you resent having to reassess your own relationship with him and it's easier to displace this and blame it on them.
Remember they are the innocent parties here who didn't have an active decision making role in their own creation. That's entirely on him. Not the women involved. He was perfectly capable of making different choices even in those days (those days include the early 2000s not just the 1960 and 70s remember). He didn't.
Wise up.