Yes

"God yes, please fuck me harder," she begs me. I smile, and start thrusting harder than before, pounding her ass repeatedly with deep thrusts that go all the way into her, then out, then back in. I can feel her tightening up around me and her eyes start rolling back in pure pleasure. But I'm not finished yet. After all, I still have plenty of tricks to show her. I thrust in deep, then stop for a second, letting my cock fill her. She starts to look at me with a confused look, but is interrupted as I shift the form of the dildo inside of her.

Ridges grow along the cock, rings of raised plastic every few inches. They're spaced irregularly, and of differing thicknesses and lengths, to prevent her from getting used to them. Her moans fill the break room and I know that there's no way that the rest of the office isn't at least vaguely aware of what's happening here. One of my boons means that they won't care, luckily, so it just adds to how fucking hot this is. "I hope you're ready," I whisper to her, and start fucking her senseless. The ridges blow her mind, and I feel her repeatedly coming around me as they scrape all of the nerves in her ass. Slamming into her over and over again, feeling her tightening around me, I decide to fill her ass with my cum as I approach an orgasm. With a final thrust, I scream with pleasure and cum deep inside of her, the dildo shooting fluids into her ass.

On occasion when I'm feeling sadistic, I cum hot or otherwise unpleasant things into people's asses, but in this case I decide to minimize messiness and mostly just shoot warm water into her. It still feels insanely pleasurable for me, and makes it clear to her that I just came inside of her, but the cleanup basically won't be necessary as her bowels will absorb it. I roughly pull out, sending her into another orgasm cascade again as my ridges rend her insides. I banish the dildo back into the extra-dimensional space where I keep it, and go to leave, glancing over my shoulder briefly.

She just keeps lying there on the table with a gaping ass, a cock drunk face, and a totally blown mind. Her hands are now playing with her clit as she tries to chase after further orgasms, but I know she'll never cum quite like that one again. I leave her masturbating in the break room with a self-satisfied smirk. Maybe now I can concentrate on work again.