Comment by Macattack on I’ve Reincarnated Into the Older Brother of a Villainess That Was Fated to Die, so I Decided to Nurture Her to Change the Future ~ I’m the Strongest in the World, but the Cutest in the World Is My Little Sister ~ - Chapter 2

It's harem ending, it's incest, and there's a prince that fell in love with him as well, and got pregnant too, so weird Mpreg sh*t!

Zechs has an adopted brother, Orca.  Everyone forgets Orca is male, including Zechs and probably even Orca himself because they're just so effeminate.  I haven't picked up the story since the main arc ended so I don't know if Orca gets pregnant but Zechs is basically a G** at the end of the story so impregnating another man seems entirely possible.  Honestly, I just put Orca being male out of my head the entire time because it's also only infrequently mentioned and usually when someone calls Orca a woman to which Orca will correct them.  Orca's basically a girl in appearance and personality.

Harem and happy ending.  The MC is practically a G** having defeated the actual G**'s agents.  Though this isn't a strictly happy story.  This world is very cruel and there are depictions of torture and murder including of children.  The MC is also forced to adhere to the values of the world and kills a commoner that criticized him in front of others at the academy.  He would normally have had to also kill the commoners family for the insult but he told the others in the vicinity they need to keep their mouths shut on the issue.