There are two people in a relationship. Things can remain "personal" to either party in the relationship until the relationship develops further. This includes sexual history.

"Getting to know you" is not the same as "You must tell me everything now." Not to mention you would be basing everything on something you arbitrarily made up and are expecting someone to guess what that made-up thing is. Crimes? Work history? Dental records?

People aren't stock lined up for you to evaluate.