Promise to her

Though Catrya has been vague on details of her agreement, what she's promising you sounds to be worth it. You have one question, though, before you agree. "You're not lying to me, right? You don't just promise this to everyone to get them subservient to you?"

"Of course not, Rosa," she reassures you. "Most invaders to my home are simple-minded killers who don't deserve the grace of my presence. But you, I can see the magic inside you. I can bring it out, if you will agree."

She knows of your magic? Perhaps she can teach you how to harness it properly. "Ok, Catrya, I'll do it." Her eyes go wide in expectation as you continue explaining. "I've been wanting to harness my magic more strongly and if you can help me do it I must agree."

"Oh perfect," she replies, finally dropping her hand from your chin and bringing it up to her collar. "Once we are situated, just repeat after me to give the oath." She spends a moment fighting the clasp holding her cloak together before finally undoing it and shrugging it off her shoulders.

Your first glimpse of Catrya's full body takes you aback. She absolutely towers over you, but her curves and features are decidedly feminine. More explicitly feminine, in fact, than anyone you're ever seen before. Her long arms are thin but toned, and her legs taper from strong, thick thighs down to almost dainty feet. Her hips and bust flare out to an almost exaggerated degree, and her breasts seem to be just as large as yours. Her jet-black hair flows far down her back, and her smooth skin is a deep crimson. A thin tail with a spade-shaped tip curls around one of her legs. What truly stands out, however, is the full 8-inch erect cock between her legs. Under it is the accompanying ballsack, tight against her body and no doubt full of potent seed.

"Having doubts?" Catrya asks, her reassuring smile finally pulling your attention away from her lower half. "I know exactly what kind of rare magic you have, and I wish to cultivate it." You nod, accepting her reassurances.

She grabs your hand and stares deeply into your eyes, readying you for the oath. "Repeat after me. I, Rosa,"

"I, Rosa," you recite. You take a deep breath after these first two words, preparing yourself for the commitment you are making with them.

"... Promise myself to Catrya, in body and soul," she continues.

"Promise myself to Catrya, in body and soul." The words weigh heavy in your throat but you've resolved to go through with it.

"I will follow her commands and submit to her will."

"I will follow her commands and submit to her will."

"She will be my mistress and I will be her ****."

"She will be my mistress and I will be her..." You swallow hard before you repeat the last word, understanding the full implications behind it. You take a deep breath and repeat back, "****."

Catrya doesn't speak a response but instead raises her free hand, holding it up to your face and snaps her fingers. As soon as she does, an overwhelming pleasure shoots down your spine. Your core tenses up and you jolt forward. If she was not holding your hand, you would have collapsed onto the floor instantly. You slowly sink lower and lower as rhythmic contractions ripple through your crotch, sapping all the strength from your legs. Catrya eases you to the floor, letting you go lower and lower with each spasm.

When you are finally seated on the floor she lets go of your hand. You throw your hands in front of you, glad to finally have a stable base with which to ride out your orgasm. The stones you are sitting on quickly become slick with your juices as you grind your slit back and forth. Slowly the pleasure fades and you take several heavy breaths to collect yourself before looking up to your new mistress.

"Wonderful," she lovingly strokes your hair as you sit there getting your energy back. "I know our partnership will be a fruitful one."