It's really hard to negotiate if the ML is naked, holding your erect penis and slowly stroking it. The last time I saw Bella, I told her $X is all I've got left in my wallet, she eventually succumbed to her horniness and accept the offer.

I wonder if it'll be cheaper by asking for standard massage only in the beginning, then negotiate with the ML to skip part 1 and go straight to extra.
ie: Standard + additional extra < Standard + B2B + addition extra