Big, strong, and hairy with a crass and domineering attitude

At first, Tom wasn't sure the wish had worked, but then Sarah doubled over on herself, taking long and deep breaths. "What...what's with this pressure?" she managed to get out, before the effort of her breathing had to completely consume her attention.

With every inhale, she was getting taller. It only took a few seconds for her to completely grow past Tom, and she didn't stop there. Her clothes strained under the extra height, but as they started to rip, Tom saw that she wasn't just getting taller. Every breath was also making her skin get greener, like someone was adjusting the hue in a photo editing program. Powerful muscles strained and stretched and expanded all over her body, along with more than enough fat to support that strength and add real mass to her body.

Her hair became a deep black, and grew out with a wild energy that screamed defiance at any who would try to tame it. Two of the teeth in her bottom row started growing, raising out of her mouth as small tusks, each about the size of Tom's big toe. A line of thick black hair grew up from under her pants to her now-bared midriff, making Tom blush just thinking about what her pubic hair looked like now.

Finally, Sarah stopped breathing so deeply, and growled out, "Is it done?" Her voice was rougher, deeper, huskier, and it made a thrum of pleasure pulse through Tom. Just looking at his wife, looking at how the beautiful young human woman had been transformed into a large, muscle-bound orc made him as hard as his wife's biceps.

"Y-yeah, it's done," he said, voice trembling.

Sarah chuckled at that, uncurling herself to stand at her full height, looking down at her changed body with a smirk on her face. "Perfect. I look absolutely fuckin' perfect." Then she eyed Tom and laughed again. "Aw, does my little human like this?"

Feeling compelled to answer, Tom told her, "Yes, I, I like it a lot Sarah."

Idly scratching under her arm, an action that carried a sound that made Tom think she definitely wasn't clean shaved there any longer, Sarah seemed to be considering that before speaking. "Well, pretty sure what matters is what I want to do, not what you think. So, the question is, do I want to fuck the shit out of you right now, or let you fantasize about it for a while first..."