I've read both of them before but I can only find one( it's the first one you wanted) https://www.mangago.zone/read-manga/after_being_shown_unimaginable_pleasure_by_an_orc_for_so_long_i/
The second one sounds familiar are the manga you talking about is a School life manga?? (๑•ㅂ•)و✧
it’s a yaoi! i guess it had school life? but I think it was way more focused on the relationships than the axtual school dynamic they had going on.
TYSMMMM ヾ(☆▽☆) !!!!
trying to look for 2 mangas!
the first is probably easy, it was just about this prince(?) getting freaky with some king ogre or troll thing, it’s super smutty but it was really cute and even has side stories of their children. the second, i can’t really remember to well. the main couple had the president of student council, i think there were three couples and the second one had a sadist. the side story had all the couples stuck in those “you must xxx to get out” and they all actually got to watch each other on camera. anyways yeah help is super appreciated! (⌒▽⌒)