Oh, I see, I see! Still sounds neat! So, the femboys would be acting as relief for the horniness of the extra-athletic muscle-mommies?
I agree with the other commenter, having hung dom femboys and big muscle-subs as a rarity would be a very fun addition, although decidedly not necessary for a first version. Perhaps there'd be some sort of luck in what supplements you were able to get, and if you were able to put together the right combo, you could get those.