Boa Hancock, and it is.

"Just who does that old man think he is, keeping me from seeing MY love on MY island?" a certain well endowed Pirate Empress was huffing as she stalked through the forest, intending to attempt to sneak over to visit Luffy, only to pause as her toe stubbed a solid object unprotected by her heeled sandals.

"Ouch!" she yelped, jumping back as she cursed. She looked down to see a golden lamp on the ground, mocking her. "Who dared to put this trash in my path!?" she demanded, kicking the Lamp, her foot brushing against it just enough to count as a rub, albeit an unusual one as it flew away from her. Not that the distance made a difference, as it immediately spewed out glittering red smoke right at her.

"Ack! What the!?" she demanded as she was engulfed in the mist, and she immediately tried to move away from it, but froze as she realized that she couldn't move enough to get out of the cloud, and she was lifted into the air. "Unhand me this instant!" she screeched, before gasping as her clothing evaporated. "What perversion is this!?" She struggled against the bindings of the odd vapors, even as they began to seep into her skin.

Her back arched as she felt intense tingling along the lower back, the Hoof of the Celestial Dragon being wiped away by the magics in the mist. She was actually quite glad for that, but something else was happening. Thoughts filling her head that made her bristle initially. She found herself unable to stop thinking about being a ****, again... But her resistance to it crumbled almost as fast as it came, as the thoughts also came with far more pleasure, and a sense of well being that compared to nothing else. The more she thought about serving others, the happier she felt.

This wasn't the form of slavery she had been cruelly subjected to under the Celestial Dragons before. No... This was a more voluntary form. Albeit, voluntary after she was turned into a higher state of being that thrived on servitude. But regardless, she stopped resisting, and a red silk, Alabastan style dancer outfit appeared on her body, albeit transparent, and including a veil.

Then, starting with her toes, she felt an intense, tingling sensation course through her legs, and she looked down to see her feet were evaporating into the red mist, the effect crawling up her legs, until it reached her hips, just a bit under her navel. She bit her lip as the mist all condensed into a long, sinuous tail that was attached to the spout of the Lamp.

She then felt the tug on her new tail, an inexorable pull towards the Lamp. She smiled in contentment as she was drawn towards it, and then pulled inside. She would settle in, and wait eagerly for her future Master.

(I hope I did the transformation well enough, lol. I was drawing heavily on sexyslave's work on it.)