Scathach (Female Ritsuka)

First she needed to test if she can possess someone very powerfull. A leauge of her own. And the first who came to mind, was:

The teacher fetish herself, Scathach. Her heart was racing. Not just how good she looked, but a small sense of dread. She could kill her so fast, she wouldn't even comprehend it.

The vents were straight forward. The Servant was with Ritsuka. It seemed like she became her personal coach. the room simulated a forest with clean sunnyday, at around 26°C.

As Ritsuka was making her long round, (10km run) out of sight. Laura dropped down on a patch of grass.

She sneaked up on a nearby tree, where she could drop on Scathach head, and catch her by surprise. Seeing as she did was still alive, she concluded she was blessed with ridicoulous presence concealment. She will build a shrine in that gods name!

Like a hungry predator she prounced her slimy body on Scathach head.

"!" she only head enough time to notice something landed on her head, but there was no chance to react. It covered her whole head. She couldn't get it off, as her fingers went through her. Laura started to invade her head, goings through her mouth and ear, and other openings all ot once.

She chocked, and convulsed. Her eyes rolled back.

A few moment passed. A soft chuckle left her lips. She looked at her hands, clenched it. "It worked!" The chuckle turned into a laugh.

She touched her new breasts. "~Hmm I never had big tits like these. They feel very good." Her pussy was already wet. She touched, her hair "Scratch that this whole body feels amazing!"

She conjured a mirror.

"Damn, I look good." Scathach's voice oozed sex. Laura had everything of her. Memories, personality experience, power. She could replace her without any effort.

The best part, about the memories. It seemed her Master had a crush on her.

There was one more test. She modified a bit herself, see if she can actually switch to her summer form.

Her bodysuit shimmered and sure enough:

"~Kukuku, Thank you Scathach for the body, I'll make sure Ritsuka can appreciate every part of it~" Laura declared in a soft voice.

"But first, it needs a little test~"

She slowly strip herself of the swimsuit, drinking in every detail of her new body. The toned stomach and muscles.

She started to play with her new breasts, and pussy. She inserted two fingers, and started fantasizing, about possessing other Servants, like Ishtar, Kama, Jalter, and many more.

That was the 1st round. The second round focused solely on Ritsuka. How she dominated her, soft voices of moans begging, for release. How she called her bodies name as she cried out in exctasy.

"I'm cumming!" The possessed Servant cried out. Pussy thightening as she released, her juice. She licked it off with a satisfying humm.

"My master should be finishing her round soon." She changed back to her purple bodysuit, with the veil.

"Don't worry, you're new Servant will make sure to take good care of you~" She sing-songed in her new voice.