a lizard

You had decided to combine her with a lizard. You had the woman strapped naked onto a table. She was a little difficult at first, but after you cast a dizzy spell on her she was much easier to handle. The ritual could begin.

You collected a lizards tail and placed it on the woman's stomach. You placed your hand over it and summoned your magic. This put an ethereal glow over your subject. The woman started to become worried and asked "What are you doing?"

You chose to ignore her and continue the spell.

"Stop it." She said softly.

You continued to ignore her and persisted the spell.

The woman began breathing heavily. She felt something was happening to her.

"Stop it! Stop it, please! Somebody, help me!" She tried to say. She was too dizzy to resist at all and was completely at your mercy.

Finally the preparations were complete. The merging could begin.

The woman's stomach became like liquid, allowing the lizards tail to disappear into it. While it was absorbed by the woman's body, she started to change.

Green scales started to grow all over her her back. From there it spread to her shoulders and the back of her arms. It also spread to her butt and downwards along the back of her legs.

After that, her hands and feet adapted. They grew bigger, stronger, and her nails changed into claws.

Then she grew a long scaly tail.

The last thing to change were her eyes, where her pupils elongated.

Once that was done, the merging was complete. You ended the spell and retracted your hand.

You had turned the woman into a lizard-girl.