Completely agree. Honestly, if Zorlun was to make them 18 just so he can put a full sex scene with them, would sound like the "landlady" and "tenant" stuff.Wouldn't have the same feeling to it f they were all 18, better off just stated any ages, let the player decide in their own mind.
I would also like to have the possibility of something else happening there, especially if it happens after some pictures or videos with Myriam have come out or been published, or if they exchange her (again) for the porn actress, or maybe something like Myriam herself going there with Crystal to show is not the same person, and something can happen with either or both of them (I had another idea in mind, but that is a 100% no go, since would involve Katherine, and she is clearly in an exclusive romantic situation with either or both of William and her Jenny).
But Zorlun was explicit, so, everything I put above, and anything else my perverted mind can invent in fantasy (real World is a different matter), are just burning calories