You don't trust your memory? I don't think Chyos foresaw a need to document who took the MC's virginity, since if that is an important detail in a playthrough, one should be able to remember this one tiny fact. Either it is important to the player, or it isn't. Wanting a new menu screen, along with the time spent to create it just to document something that should easily be remembered is a waste of time.
It wouldn't make any sense for the MC to have an entry in the Relations tab, so it would have to be a whole new section of the menu somewhere, just to document something that if it was important enough for you to care about, you likely made it a point to target that LI first. Making specific game adjustments to accomplish that goal.
If that is a fact you would like to know about your playthrough, but have memory issues, write it down.
If an LI in the game has children, the MC can't take her virginity. If she has no children, the MC can.
The MC actually can lose his virginity to Verena, get the key from drunk Rick. Wait for a cult night, sneak into Verena's room with high dexterity and lust.
Katherin and the other woman of Rumah are just about the only LI's that the MC can't lose his virginity to. It's just as easy to lose it to Frisha or Emily as it is Mira.
Wanting special dialogue about the MC's virginity for 35 unique situations is also not development time efficient, you would only see one bit of virginity dialogue per playthrough.
But in order for it to exist, that virginity dialogue would have to make since into each of the situations the MC could lose his virginity. Where that conversation is fluid with or without the virginity bit of dialogue being included. What the MC says to himself while losing it to Verena would be much different than if he lost it to Yasmin in her parlor. In Frisha's bedroom different than in Gavina's bedroom.
A whole lot of effort, possibly an entire development cycle, just to document and have a conversation about the MC's virginity isn't a small ask, it's a big one.
