Well I am currently caught up in work because of the holidays though I am taking a week off after Christmas which will give me a lot of free time on here to post.
I was going to create a dominate male myself, sort of a leading student who could administer out punishments and drugs. So a student with power even over some of the teachers simply because we can't let all the adults have fun and we need some people to organize against the teachers for some added fun in case one of them needs to be 'punished' or something. So yea, male student who not only dominates other students but teachers as well.
There will not really be a system. I was going to have like a Discipline role play request log sort of thing where members with their characters can put up what they are looking for, either a solo, orgy, gang bang, whatever. In that thread punishments would also be organized and what not. So I would have a list of links to open threads, like open gang bangs, orgies, punishment sessions, and then closed multiples or solos would not be listed and those people can go do their own thing. Using this people could also request others to play a certain small part, a side character or characters.
As for where or how these sexual activities occur that is also up to those interested in joining that thread. It could be an orgy in a classroom, a gang bang outside in the school's courtyard, a punishment session in the gym, a threesome in a dorm, solos in the bathroom, pleasing a client on their private jet, etc. I will not really have a system as I want people to explore the story and possibilities as much as they want. The only system really would be punishment sessions, though even then we would have to have people volunteer their characters for such a thing. Then there will be a few rules and what not that the school has that I will put in this Discipline role play request to give people a better understanding about certain things which can also be incorporated into the game.