You successfully admit the phallus.

You gulp and steady yourself within your stirrups. With a deep breath you close your eyes and imagine yourself yielding to your, as of yet, unknown Master. In honor of my birth mother. I will ascend higher than even you.

Despite already being ass trained by Mistress Jade, you are not prepared for how tight your pussy augment has made your entrance. The rubbery head of the phallus presses against the tight band of muscles at your entrance. She pulls your folds further apart and leans more of her body weight into her motion behind the tool.

"AAaaAAaaaaah! For you, my M-M-Mmmmm-MmmmmmmASTER!" you cry out over your buzzing clit.

Pop!

With a powerful snap, the girl stumbles forward as the phallus breaches your vaginal opening.

"Ughhhhhhhhhhhh..." A guttural grunt escapes your gaping lips and your eyes roll into the back of your head.

"You're doing great. It's important you keep relaxed. Focus on your breathing!" the technician coos from between your legs before resuming her dictation to the audio log, "Subject has successfully opened herself to the phallus. Will assess the seal to ensure water tightness between her vaginal sphincter and the shaft."

The girth of rod sticking out of your vibrating pussy strains the ring of muscles at your pussy entrance. It is unbearably pleasurable.

You cum causing your new pussy augment to violently spasm around the massive tool.

"EEeerrrrghhhhhhhhhh.... Ackkk...... In s-s-s-ssservice to my Master!" you proclaim to no one in particular.

The technician giggles, "Well, that is a new one." She pauses for your orgasm to subside over the next minute or two, "Let's continue."