It would be like the contract you make during a summoning - I would ask if you would be my Master, and you would agree. Thus, we would become Master and Servant.

[And thus from Daddy and Daughter to Servant and Master, insuring another layer of awful innuendo.]

I will, of course. I can go by the chant line by line to help you understand exactly what each bit of it actually 'means' in common parlance, if you'd like?