@Lee1,
So?
I am being perfectly serious here.
Be honest with your sexual partners and expect/demand forthrightness from them. Consider the past to be ancient history. It tends to not matter, no lie.
Many STDs have cures, BTW, and just because someone had more partners than you find acceptable, it doesn't mean that they didn't take precautions.
Oh, and BTW, kissing a virgin who hasn't had a flu shot can be a dandy way to get a rather serious illness which kills people every single year --- influenza.
Or do the risks of getting a disease only matter if that disease is venereal in nature?