You are setting yourself up for spending money with possibly little effect.
A new page, and in an extremely competitive niche? Do you have truly unique content to make an impression?
Because for mother/slave you need two things:
- deep pockets to keep an army of slaves alive and active
- a very attractive master account that will convert curious users into followers
I would propose you build up some content, maybe do a bit of advertising (which usually is cheaper than master/slave in the beginning, but definitely easier to scale) to learn how you can engage in that niche. And only after you have a feeling about how to gain and keep followers, set up tests with master/slave.