Clem - in answer to your earlier post:-
would any of these interest you:
He had a child by a previous relationship - yes as that is something that would obvilously impact on our everyday life
He had a history of infidelity - do any of us every really know the answer to that?!
He had a history of being violent towards women - naive as it may seem, I'd hope there would be some warning signs prior to getting into a relationship with a man with a previous history of domestic violence
He had had sex with men - does that really matter if he and I have been tested for STIs?
He had been an intravenous drug user - ditto if he's clean, though I would hope that he could talk to me about it to prevent a relapse, but that's up to him
He had criminal convictions - again, if it's something that would impact on our everyday life then I would hope my partner would feel able to confide in me to enable us to move forwards together. If it was for possession of acid 20 years ago and he'd forgotten about it and moved on then it's not relevant to the here and now
My 'white lies' aren't exactly lies as such, more that DS knows about the two other men I've slept with and hasn't wanted to know any more than that. He just hasn't, simple as. Sometimes the occasion doesn't arise to discuss previous sexual encounters as frankly as others (you?) would, and sometimes the ideal time has simply passed. You ask about STIs. I say that a treatable STI infection 20 years ago is of no relevance to the here and now. If I have a recurrent infection/condition that affects my health today then that's a different matter and one that should be discussed with partners as a matter of course for embracing an ongoing sexual relationship.
Of course there are going to be some aspects of a person's past that should be discussed. However, in respect of the original post, how many people they have slept with isn't going to change their relationship. He loves her. She loves him. Is he her first? No. Is she his first? Who knows. Who cares. If two people love each other the rest is irrelevant and everything else falls into place.