Not sure what you mean. Are you looking for a VN where you choose one LI and pursue her and no one else has sex with anyone if it isn't with you, and all of them are virgins before you get there? If so, you might be able to choose a monogamy route and avoid side girls, but if you're looking for virgins, you're in the wrong place. As for the BJ competition,
that was a sorority initiation - three initiates each blew a different guy and the one that took the longest to make their guy cum lost.
If you want "purity", then you may be on the wrong website altogether - I don't think any of these VNs are about holding hands and taking walks in the park. That's just entirely too lewd for most folks here.