To confirm, as of the new version Slave Maker 3 the game supports male slaves and twins.
I have no interest in developing a male slave so I will leave that to others.
I may though develop Ranma to have a 3 gender oscilation through male, dickgirl and female, instead of the current dickgirl/female
Not much done last night
a) bounty hunter visits and love affair
Actually I tried out Hentai High School by Poooloka and one of the reversionings of it. I found the original rather fascinating and lost a few hours playing it