Demon summoning was a terrible idea for the unprepared, but Marcellus, who fancied himself to be wise and good-looking in a suave gentlemanly way, had all the protective measures on his person and in the ritual catacomb under his tower; it was just a gray stone basement with a bed in the corner, but he liked to call it the ritual catacomb. The everlasting torches mounted on the walls gave the place a sinister dark orange glow, so why not call it a catacomb?

With silver pellets embedded in the mortar of the brick walls to stop her from teleporting anything else in or escaping outside, a fire resistance potion already drank in case direct combat broke out, a ring of pact warding and a ring of soul warding on his left and right hands respectively that could only be removed by him and only if he said the secret phrase beforehand, and then finally, a guidebook on dealing with demons that he read through extensively, Marcellus felt like he had room to blow off some of that pent up horny steam inside him.

By summoning a mere imp succubus while using countermeasures sufficient for something much more powerful, she would be bound to serve him temporarily, be unable to take anything as payment, and she'd be unable to beat him in a fight if anything somehow went wrong. And, it was a one-time encounter, so she wouldn't have months to trick him into slipping up somehow; just a few minutes that he himself had complete control over. Marcellus, standing in front of his complete chalk and candle ritual circle on the floor, tapped his head and congratulated his own genius with a smirk.

It's simple; just don't let her take your soul. What was so hard to get about that?

He made sure everything was in order, then stood at the edge of the circle and began the chant; he waved his arms, channeling mana into the chalk runes, which began to rotate and writhe and glow a sinister red. The candles flared up, and shadows began to coalesce into a dark fog in the center of the circle...

Finally, he uttered the last few words, and purple lightning burst through the shadow as it began to dissipate, the light revealing the short yet busty figure within.

The naked imp confidently stepped out of the dissipating cloud of dark magic. With pale skin seductively lit by the dim ambient orange light, curly beige horns like a ram, tiny bat wings jutting out of her back, neck-length red hair, and a wicked smile, she looked around and sized up her environment. The sexy, elaborate heart tattoo just above her pussy marked her as a succubus, even though as an imp, she was much shorter than her stronger counterparts.

Seemingly impressed by what she saw, her red eyes looked into his, drawing his own gaze away from her wonderful breasts.

"Oh wow!" she said. "You even put silver in the walls?"

"...Yes, yes I did. I was very well prepared for your arrival. Trust me, not a single--"

"Good job!" the imp said, gently clapping with approval. "You even went all out and got some rings! What a smart wizard!"

"Uh... Thank you?" Marcellus said. He wasn't entirely sure if this was meant to be sarcasm, if she was sincere, or if there was something else going on.

"Where'd you get them by the way?" she asked. "Did you make them yourself?"

Marcellus rolled his eyes. "Can you just follow me to the bed?"

"Okay okay, I was just curious... I'm Ruby, by the way!"

As they meandered to the bed, Marcellus kept talking.

"You know you're not getting my soul, right?" he asked.

Ruby shrugged. "Yeah, but if someone does eeeeverything right when summoning a hot girl, I think they earned a risk-free romp as a reward, right? And come on, no reason I can't have fun with it too."

Marcellus knew she was probably trying to get him to lower his guard as a last ditch effort to accomplish something, but she was powerless enough for some idle chatter to be acceptable. "I bought the rings from a local priestess, by the way," he said. "She has a reputation for quality trinkets like these. I wouldn't expect anything you have planned to work."

"Priestess?" Ruby asked. "Oooh! Is she your type?"

Marcellus thought about it. That blonde priestess--Ophelia was her name--was quite wonderful, and just as busty as the imp in front of him, and maybe just a little flirtier than was acceptable for her role. He had a hard time hiding the bulge in his robes when he went to buy those rings. Ruby's shorter height somehow made her look more alluring, but he didn't feel like shoveling praise onto an imp.

"Yep. Pious and honest," he said with as straight of a face as he could, taking his shoes off and starting to undo his robe once he reached the bed.

Ruby giggled, coming closer. "Then why'd you summon an imp?"

Marcellus kept undressing, using that as an excuse to stay quiet while he thought of a response. He took his robe off, as well as the shirt underneath it, then sat down on the bed.

"Because priestesses don't like giving out titfucks." Plain, honest, and in his opinion, a wise answer.

Ruby nodded, gesturing at his pants and the unconcealed erection poking against the inside. "How about I take care of that for you?"

"Please do," Marcellus said, feeling arousal blossom through his body as her gentle hands gripped his half-undone pants and slid them down to his ankles. And finally, looking up at him with a smile, she toyed with his underwear for a moment, playfully kneading the fabric and twirling it in her fingers while keeping her touch away from his erection.

Ruby let out another giggle. "You really want an imp to bury your dick in her chest?"

"Mhm."

"Then beg for it... you're a smart wizard, you can beg a little for once in your life..."

"Please get on with it," he said, the horniness building. He wanted to get to the good part, and even though Ruby was bound to serve, she did have just enough wiggle room in her obedience to tease him during it. If only he could have stamped that out somehow so she would hurry up...

Ruby started to pull his underwear down.

"If you want it that badly, then I'll happily give it to you... Just enjoy yourself," she said with a smile.

She quickly pulled them down the rest of the way, revealing his erection.

"And you know," Ruby continued, "I can steal people's souls with my boobs... Good thing you have that ring, right?"

"Yeah yeah," Marcellus said, parting his legs for her, wishing angels also had cute horns and gave titfucks.

She slipped herself between his legs, and her chest came close to his erection. All she had to do was lean forward just a little.

"Hurry u--" When her breasts pressed against his erection, the pulse of pleasure that went throughout his body silenced him for a moment.

Ruby smiled. "Aren't succubus boobs fun?"

Still stunned, he couldn't help but slowly lean back onto the bed, letting out a soft moan of pleasure. As Ruby brought her chest further forward, taking his erection fully between them, he felt whatever she was doing grow stronger. Her breasts shouldn't have felt that good, and he knew it, but at least he had his precautions active.

Ruby brought her hands up to her chest and pressed her breasts against his erection, closing her eyes with a cheerful smile as she moved them up and down, their soft yet powerful embrace filling his whole body with arousal as his erection was squeezed between them.

"I can see it on your face," Ruby said with a giggle. "Bet priestesses can't do this to you, can they?"

Marcellus finally recovered enough to speak. "Hnng... Yeah..."

As the pleasure was building, he felt a little lightheaded, and like his body was getting weak; definitely side effects of feeling this good. Succubi had pleasure magic, so it was probably just something in her boobs to speed it up. He grabbed a pillow to prop up his head, then let his arms go loose beside him.

As amazing as it felt, orgasm built surprisingly slowly inside him. He wasn't anywhere close, but he felt himself climbing the slow mountain of pleasure.

Ruby winked at him. "You'll never wanna ask a holy girl out again after this. I'll just add a liiiitle more magic..."

She paused for a moment to build up the magic inside her chest, then her breasts started to gather a very faint pink glowing aura. He felt as though they were starting to press against his mind, melting it with the same pleasure that made his limbs want to go limp. Ruby carried on, rubbing them up and down against his erection, making him want to erupt...

Something felt off about the magic inside him that he couldn't quite place, but he was too aroused to bother thinking about it. It felt like she was starting to control him, and as the pleasure entered his body and he focused on that sensation, it almost felt like something was leaving his body. Probably his thoughts about hot angel girls and priestesses... He felt more like Ruby was exactly what he wanted by the second.

The glow in her chest brightened as those feelings inside him grew stronger.

"Feeling like you're losing your soul?" Ruby asked. "Don't worry, it's impossible, so just relax..."

A flash of worry arose in him. That was what it felt like was leaving him... He gripped his rings to make sure they were still there. Just pleasure magic then. He could relax...

Orgasm came closer and closer, and he sunk into the delightful craving.

"I can feel all that arousal inside you," Ruby said. "Go on, cum as hard as you can, let my boobs do whatever I want to you..."

That started to seem more and more of a good idea. It was safe, right? Right? The glow around her chest grew brighter, and he felt a diffuse, soft warmth start to fill his body alongside all the other pleasure. His mind had doubts about what was going on, but her breasts were just soft enough to suppress them...

Just before the tipping point of orgasm, another peak of worry came in as he swore his soul was really leaving his body. But feeling weak, dizzy, and lost in pleasure, he couldn't do a thing about it but let out gentle moans.

"That's right, cum for me, cum and just let your soul leave your body..."

He told himself it was impossible, so as orgasm took him, all he thought about was her chest. His erection burned with arousal as it twitched between her breasts, her steady rhythm speeding up as he spurted out burst after burst of cum onto her breasts and chin, all while feeling his soul flow out of him like a waterfall. Her breasts seemed to take it all in, the glow peaking in brightness as he felt his essence get taken in by her chest.

"Keep going," Ruby said. "You're almost done... Give the rest of it to me."

Remaining perfectly conscious, the pleasure kept ravaging him as her wonderful breasts stole more and more of his precious soul. The sensation of it leaving him grew faster and stronger, and he didn't care at all...

Then, the last glowing strands of it flowed out of his erection and into her breasts. Her soft chest prolonged his orgasm for just a moment more, and then the pleasure started to subside. She slowed the movement of her chest, then stopped altogether.

As the arousal slowly faded and his erection stopped twitching, something felt terribly wrong. He gripped his rings again, and they were in fact there, but his body still felt weak, dizzy, and like something that didn't belong to himself anymore, but to Ruby. The glow around her chest subsided, but as his various senses focused once again, he felt like his soul was trapped in that same delightful softness as his erection, which even after his orgasm was over, still felt a little arousal from the magic of her chest...

Ruby giggled, then looked at him with a smug grin. "Having your soul in my chest feels soooo good," she said.

"No," Marcellus said. "The rings stopped that, right? They worked fine..."

Ruby gave him a knowing look that filled him with dread, then spoke. "Wasn't it funny how that priestess you bought it from had boobs just as big as mine?"

She wasn't there; why was she commenting on that?

"You got nothing," Marcellus said, slowly sitting up while still feeling dizzy. "My soul is safely--"

Ruby took a hand off her chest and snapped her fingers. "Pet, thank me for stealing your soul."

It was like he felt something inside her chest compelling his mind and body into instant obedience. Marcellus acted automatically, his voice taking on a submissive, horny tone. "Thank you so so much for taking my soul, I love being owned by you! My soul belongs in your tits, thank you again for taking it."

The compulsion ended, and Marcellus was left frozen in place out of shock as Ruby looked at him with a smug grin.

"Come on pet, you really shouldn't trust every priestess you see. Who knows how many are devious imps in disguise..."

"But she..."

Ruby patted her chest, and Marcellus felt it in his soul. "Those rings don't do anything," she said. "And now you're right here in my boobs. Now pet... lean back and hold still."

Marcellus felt his body and mind fall into compliance for just long enough to carry out the command, then when his mind returned, he found that he couldn't move an inch.

"I did everything right!" Marcellus said. "Give me back my soul right now or..."

"Or you'll be my servant forever? Sounds great! Pet, the next time you cum, I want your mind to be permanently loyal to me; all you'll want to do is please me."

Out of desperation, he tried casting a lightning bolt spell, but his hands were unresponsive and stuck laying against the bed. And when he summoned the intent to use his magic, instead of a brief surge of power, he felt... nothing. His soul wouldn't let him do it.

"Mhm," Ruby said. "I felt that. Sorry, your magic's all mine. Now, pet, I want overwhelming arousal to fill you as I rub my boobs against you once again..."

Ruby pushed her breasts against his erection, and as she moved them up and down, the soft, intoxicating pleasure they brought was aided by the warm, slick cum lubricating them. Pleasure flooded through him, far more intense than before; even if he weren't frozen in place already, he'd have gone limp instantly.

"Want to know something fun?" Ruby asked.

"Hnng..." he uttered.

"I don't actually have to say my commands to make you do them. I can just think them..."

Marcellus obeyed her newest silent command. He didn't hear it, but he carried it out anyway. "Please turn me into an obedient plaything forever," he begged, the pleasure building rapidly and sending him closer and closer to orgasm.

"With pleasure, pet," she said with a giggle. Already halfway to orgasm, he couldn't do anything but get lost in pleasure. His situation grew less alarming as her chest took up more and more of his mind once again...

Ruby excitedly pumped her chest up and down, and he tried his best to resist the pleasure; but no matter how much willpower he summoned, he kept giving into pleasure and wanting more before a little spark of resistance arose and was melted into compliance yet again. And soon, he stopped trying altogether.

"Come on pet," she said. "Cum for me, all you want to do is cum and be my plaything..."

His erection did its best to obey, surging with unbearable arousal... He was almost at orgasm, and then when her breasts moved up and down one more time, he finally came. Every pulse of orgasmic pleasure resonating through his erection filled him with horny obedience, pushing those other thoughts out of his head.

"That's right, all you want to do from now on is obey..."

He couldn't think of anything but her chest; and of obeying her.

"All you want to do is serve your owner..."

His erection let out as much of his cum as it could, covering her chest even more thoroughly than before, before the bursts slowly grew weaker even as his orgasm rampaged onward, taking away his free will and replacing it with pure obedience.

"Good boy."

It went on and on, and the last of his willpower left his mind. Finally, she allowed his orgasm to end, bringing her chest to a stop and looking down at her pet.

"How do you feel, pet?" Ruby asked.

"Wonderful," he said. "Thank you so much for making me your horny pet..."

"Good boy," Ruby said. "And now that I'm looking through your soul... You have a lot of useful spells, don't you? Thanks for giving them all to me." She took her breasts off his erection, then she cast one of his cleaning spells to get rid of the wet mess covering her.

"Now pet, stand up and follow me..."

Marcellus obeyed, eager to do whatever she wanted. He stumbled forward watching her chest sway as she walked, his soul happy to be inside it...