How do I react to this joint pleasure attack?

Quite favorably for the Dress Facilitator!

Downing in her titflesh, I can only moan in response as she begins to pump her jugs against the side of my head, massaging it just like she would my cock - and as such, I felt that exact stimulation on my manhood even as the woman fake-riding me begins to cry out in a moaning orgasm!

"You five, you're up next. Just swap off when you've had your fill," I hear the Dress Facilitator say, as the woman on my cock gets off now that she's milked enough cum to satisfy herself... but my penis isn't left unattended for long, as I quickly feel another wet and willing pussy impale itself onto my meat rod! Having been completely submerged in the Dress Facilitator's chest, I can't even see anything about my newest partner - her pussy pumping my cock was the only thing I could use to hope to identify her with. I close my eyes to just focus entirely on the pleasure, but even then I was not spared the slightest mercy. In my mind's eye, I was still besieged by the Dress Facilitator's divine tits - I couldn't escape the image of them bouncing, swaying, jiggling... teasing me. It was searing itself into my brain, constantly obscuring my thoughts and vision alike - they were becoming the only things I could think of, the only things I could comprehend.

Case in point, I didn't even realize how much time had passed until my cock felt oddly unattended to for a while. I groan as realization and consciousness slowly seep back into me, lifting my head out of the Dress Facilitator's bust to see not just one, not just six, but an entire line of thirty women all bent over and masturbating while my cum leaked out of their pussies!

"Good morning, titslave," The Dress Facilitator says. "Enjoy your little nap? It's only been a few hours though, so it isn't really morning quite yet," she says. "Though, my time with you is just about up, but I think you're ready for the grand finale now."