"Sebastian… Tonight, I want you to show me your real form." Ciel said as he laid on his back with his butler on all fours above him.

"Pardon?" Sebastian asked a little incredulously. He leaned up from his previously close position to his master's face when he was about to kiss the earl.

"You heard me."

"But, master-"

"No 'buts', Sebastian. Show me your true form."

The demon swallowed, then sighed. "As you wish, sir." He then sat up.

"Stand so that I can see you." Ciel ordered.

Sebastian complied, moving off the bed and standing. Ciel watched him with full attention. Inhaling and sighing, Sebastian then let blackness engulf him. Black feathers started to fall from the pillar of wiggling black smoke. Ciel's eyes grew in anticipation. Then the darkness cleared and the demon in his true form appeared. Overall in shape, he wasn't that different from the human form Ciel knew him by the most. There were just a few different and additional things. For example, his skin was now black and white. The whiteness seemed a lot like the color of grey ash and the blackness, being in the form of closely-placed cracks that resembled the design of a tree bark, was a lot like coal in its particular shade. As expected, his irises were crimson with their fuchsia glow, but the whites turned black this time. His nails turned to claws, their blackness the same. From the top sides of his head, black curling ram horns grew and pointed outward. His hair, the same kind of black that Ciel knew it to be, was longer. It was divided into three pony tails. The first and largest, at the top of his head, the second in the middle of the back, and the third on the underside of his skull above his neck. The three of them were held up by metal rings that resembled silver, a metal that was thought to be poisonous to creatures of darkness. Was Sebastian mocking the common belief by wearing silver as jewelry? That would be a lot like him if that was the case.

A little from the start of the third pony tail, the three of them were joined into a single braid that went to the back of the demon's thighs. From the small of his back, where his crack started, grew a black tail about a meter long with a tufted end. Whether Sebastian's feet ended in hooves, Ciel couldn't see. However, he assumed not because he could see the shape of the demon's legs remained human. Was Sebastian mocking Ciel by still keeping some of himself more human than he really was? The boy could swear that when he summoned the demon that fateful day, he wore heels and some sort of robe. Then again, if he wore heels then he didn't have hoofed feet…

The most interesting part about the demon's form was his wings: they were upside-down. Starting at his middle back, just above his waist, they were folded upside-down. Sebastian saw how Ciel was staring up at them and turned the wings to be in the position that was expected to be proper, at least proper for bird and angels. Demons, however, had upside down wings. That didn't stop them from being useful though, as the wings could be rotated any which way due to the flexible joints, just like an owl's neck.

Ciel watched the black wings turn to a position that would be expected of any winged creature and frowned. Sebastian rose a slender black brow at that reaction. "Turn them back to how they used to be." Ciel said. At that, it was Sebastian's turn to frown, but he did as told and the wings were back to their original upside-down position. Then he watched his master's gaze drift… downward. The demon bit his bottom lip softly as he knew his master was studying his loins. "Get on the bed, Sebastian." Ciel said.

A moment later, the demon climbed back onto the bed on his knees. From that movement, Ciel could see that his feet were humans, and the nails on the toes were black claws like on the hands. He also noted that the palms and soles of the feet were light grey. As the demon made his way to the middle of the bed, Ciel got up and made his way to him. Sebastian saw that as a sign to stop and then watched the earl stop on his fours before him.

With one hand, Ciel grasped the member that was just a bit bigger than the human version he knew, and began to stroke. As he stroked, he studied it. The black and white design faded slowly on the foreskin as it got to the top of the shaft. The glans that peeked out from the unpeeled foreskin was medium grey and moist. Ciel stopped stroking and looked at the head, then peeled back the foreskin to reveal it completely before giving the tip a lick. He grimaced at the taste. It was absolutely disgusting and Ciel couldn't find the right words to describe it.

"Master." Sebastian said, intending to stop Ciel when he saw the boy's expression. He placed a clawed hand gently on the boy's shoulder.

Something excited Ciel about Sebastian's disgusting taste. So he licked again, then he took in the entire head into his mouth and sucked.

"Master!" Sebastian said more demandingly this time. He knew he tasted bad to humans, so why was his master doing this; assaulting his delicate taste buds on purpose?

Ciel didn't stop. He leaned in and took the shaft to the middle, pulling his head back and pushing it forward as he worked the demon's member. Sebastian caught his bottom lip between his fanged teeth. It is worth mentioning that Sebastian had 12 fangs. 6 above and 6 below, the three teeth following the canines becoming fangs as well though shorter ones.

Sebastian's hips trembled when Ciel finally took all of his 11 inches down his throat and his face was in the demon's crotch between his legs. The boy moved his head back a little bit and then forward again, taking in the demon all the way over and over, choking himself on the manhood. It was when he looked up at Sebastian with his mismatched eyes that the demon came, flooding the boy's esophagus with his seed. There was so much that Ciel finally couldn't force himself to stay still and pulled back. The demon manmeat slid out of his mouth and dropped to hang between its owners legs as the boy threw up nearly a liter of semen. Sebastian leaned down, worried and wanting to help his master. "My Lord, are you all right?" He asked with concern, his voice distorted and sounding disembodied despite clearly coming from his lips. "Why did you do that?" His brows were furrowed with concern.

Ciel panted after he had finished heaving up the load of demon seed. Now he could taste it on his tongue and it was absolutely revolting. He could have thrown up again bit forced himself not to. Seeing his butler's concerned face made him smirk. If anyone else saw the demon's concerned expression, they'd take it for something else and run for dear life. But not Ciel… He could tell the emotions on the monster's face. So he leaned up and kissed the beast of darkness.

Glowing eyes widened in surprise, but soon, the monster returned the kiss. Strong arms were wrapped around a small form and soon the two were overtaken by desire.

Long hours passed as the two drowned in lust. The room was full of moans, panting, and animalistic grunts and growls. It was in their first round that the bed already made cracks in the wall and then broke, but the two carried on since they were still on a soft mattress. Soon, however, that mattress was torn up by sharp claws. What was to say of the bed sheets? The pillows were also a mangled mess, however the covers somehow suffered the least. Ciel's body was covered in grip-shaped bruises, his bottom red and bruised from spanking, claw and bite marks decorated his skin and flesh. There was also blood between his legs. With the demon being as large as he was and more aggressive given his form, the little boy's hole tore a bit. However, Ciel didn't let that stop him. He wanted Sebastian. He knew that he still wasn't getting all of him, that Sebastian was still holding back, otherwise Ciel would die if Sebastian allowed himself to be truly himself. Even knowing that, Ciel was still satisfied with what he got because he got to know his demon better.

Despite how rough Sebastian was, he still held his master in a loving embrace against his body. Strong arms were always wrapped around the small form, and sometimes the wings were too if the position permitted it. The demon gave it to his human in different positions from the front, the side, and the back. He drilled that little hole thoroughly and made sure to feed him his every load.

In the end, Ciel's hole was a gaping mess. Sebastian took it upon himself to clean his master out with his tongue, then he took to licking and kissing the injuries he inflicted upon his human's body. After that, he pulled the exhausted boy into his arms and sat him in his lap, embracing him with his wings wrapped around the child body and his lips pressed against sweaty hair. They stayed like that in silence. The demon was overwhelmed by a feeling that he couldn't name, but he knew one thing. For the first time, a human not only wanted to see his ugly form, but also made love to that ugliness. Though he sensed for a moment there was some sort of sick attraction to his form that his master exhibited, looking into the boy's eyes while they made love made him understand that Ciel's feelings were more that of happiness that he showed him his real self than a filthy form of lust for his inhuman body.