You're not asking too many questions, Gwen is the first/main girl and other girls can come in any order you like, it is a harem and yes it will be a big room because he is rich now (it will be an orgy in the end). As for bubble butt models, sizes like Amy Anderssen, Coco Austin, and Kim Kardashian size asses. Yes anal is allowed. It will be a lot of milkplay. Any length is up to you, but maybe 4,000 words is fine by me. Also, Ben is the dominant one in this and his girls are his lovers/sex slaves.