Every other game the same for simple reasons. Its working. For devs it good strategy for money. And for players. Well, you may think so but trust me you won't like game when you can have taboo sex right from the start. Its kills taboo itself. Eery good game need struggle, crisis, conflict. Because anticipation is also part of pleaure and the pleasure when you finally there, you won. That is why corruption game is so popular. But with too much grind or waiting too long its can be not so fun.I wouldn't mind if it's only 1-4 updates if its full of sex scenes, it's short but it gets the job done. Plus people are already hating devs that are delaying games for 2 years with no sex. Also it doesn't have to be a slow corruption, hunter has the money, the skills and the dong to make it happen quick. Sterling on the other hand is the opposite but has the looks but because he's trying to fuck his own family with the chances of possibly impregnating them he has to do hard work for it first. Sure the reading to get there is fun but every other game is the same.
For your idea it will be more like DLC for main game after it will end. Well its on dev.