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.