DxD: Infernal Destroyer

Despite Sona's attempts to bury her head in her book, her gaze couldn't help but shoot to Abaddon and Rias, who were both engaged in performing very explicit activities right in front of her. That was when she noticed a white glow being released from Abaddon's body.

An inquisitive frown appeared on her face as she attempted to identify the glow. From what she recalled, both Aether and Draconic energy didn't have any color and were completely invisible to the naked eye. As for Abaddon's Demonic energy, it took to the yellow color with respect to his lineage's magic circles. 'It feels familiar, but I can't seem to put my finger on it,' She thought to herself.

As if sensing her inquisitive thoughts, Abaddon gave her a small smile after letting go of Rias' breasts. Instantly, the white glow started rushing toward, her startling her. It reached her within moments as Abaddon's expression turned into a frown. "Unruly ass energy …" She heard him mumble as the energy receded from her, going back to envelop Abaddon and Rias.

"What's this energy, Abaddon?" Sona couldn't suppress the question anymore.

"Draconic energy," Abaddon didn't elaborate, making Sona frown, but she refrained from asking further as she saw him latch on to Rias' breast once again.

Sighing at the answer that only raised more questions in her head, she was forced to suppress her curiosity until Abaddon was finished. Instead of focusing back on her book, she decided to observe and try to sense the movements of that white Draconic energy. Her attempts to sense its movements seemed futile. At best, she could barely sense its existence and general presence and that was it. It was far from enough for her to be able to gauge the movements of the energy merely with her senses. Ultimately, all she could do was go by its visual appearance which didn't tell her too much.

She could see the energy being released from Abaddon's body and enveloping both him and Rias, but nothing more seemed to be happening. Unlike what she expected, it wasn't entering Rias' body and was merely surrounding her along with Abaddon.

Eventually, she gave up and continued to focus on her book.

As for Abaddon, he was also deep in thought while enjoying Rias' busty chest and her tight pussy. With each bounce, she had to stress her core to stay in control of her movements, which caused her to tighten her pussy every time she descended to take more of his cock. Abaddon loved every thrust of the process and happily suckled on Rias' breasts, thoroughly teasing both of the redhead's nipples.

'Yo Draig, I recall you telling me of a correct way to feed Draconic energy to my women. What's that?' Abaddon asked Draig mentally while enjoying Rias' enthusiastic embrace.

'I think it should be obvious at this point that the heart is the core of our Draconic energy system,' Draig explained. "Directly feeding Draconic energy to your women will undoubtedly strengthen their bodies and minds, yes, but the returns will be diminishing. Whilst if you directly feed the energy to their hearts, then the long-term benefits will be far greater.'

'You wouldn't happen to know of the way to make the Draconic energy gather in the heart, would you?' Abaddon asked, fully expecting a negative answer.

'I don't,' Draig never failed to stand up to his expectations. 'But as long as you have good enough control, you can guide the energy through their bodies and make it gather at the heart before allowing it to naturally permeate through the rest of the body.'

'Everything comes back to control …' Abaddon felt annoyed and decided to take it out on Rias in the way he knew she loved. He grabbed her hips and held her up, causing her to moan in dissatisfaction. In response, Abaddon bit her nipple, making a squeal escape her lips as he brought her down roughly, causing her to take his cock to the base. Before she could gather herself, Abaddon brought her up and let her come down once again, without any autonomy in the process.

The change of pace had doubtlessly delayed her orgasm that had been slowly building up, but with the rough movements of Abaddon alongside his rough treatment of her breasts, Rias knew that it wouldn't be long before she exploded.

As for Sona, she couldn't help but blush when she noticed Abaddon's change of actions. She also noticed that he'd pulled back all of the Draconic energy that had been previously surrounding him and Rias, but that wasn't her focus. Her focus was on the fact that she really wanted to be in Rias' place at the moment. Having already tasted the forbidden fruit, it was going to be difficult for her to suppress her desires despite her embarrassment.

'I'm going next.' She decided with conviction and stood up just as Rias howled with pleasure after experiencing her first orgasm.

…

The next couple of hours passed by with Abaddon vividly expressing his desires with Sona and Rias. He also took the time to do some tests with Draconic energy, but even the slightest traces that entered either Rias or Sona's bodies left them far too overstimulated. In the end, he made sure to keep his Draconic energy under control while letting his desires run wild.

Eventually, Abaddon was sated with both his girls sweaty and panting as they looked at him with horrified eyes.

"How do you never get tired?" Rias gasped out between deep breaths, punching his arm angrily, though it barely classified as a love tap considering how weak and sore her body was despite Abaddon's constant Aether treatment for both girls. Rias even got her special power of destruction treatment. Yet the two girls were completely exhausted as they cuddled up to Abaddon from both sides.

"Do you girls want to train now or rest for a bit?" Abaddon asked.

"Train." "Rest." Sona and Rias answered before their gazes met, both sporting fierce expressions.

Before either of them could open their mouths again, two slapping sounds reverberated through the bedroom as Abaddon spoke, "Don't bicker. We will stay in bed while I explain to you girls the system behind teleporting magic spells."

"What about your training?" Sona asked with consideration. "I appreciate you helping us, but don't you have your own training to do?"

"I have to work on a more advanced application of this exact technique. After working on it with Akeno, I realized that covering the basics again can help a lot for advanced applications as well." Abaddon said, stroking Sona's spine, causing her to hum comfortably in response.

"Can't we rest for a bit?" Rias pouted. "I'm still feeling sore."

"Don't be a brat, Rias," Abaddon spanked her ass again, making her squirm.

"Bully."

…

The next few days passed as Abaddon taught both Rias and Sona the same technique that he'd taught Akeno. First came the theory behind the Spell Compression aspects of magic. After that, they moved on to teleporting those compressed spells in an efficient manner. All in all, it was a fruitful few days where Abaddon was able to make sense of what he needed to do to compress Destruction spells.

Destruction, however, was going to be Rias' domain and Sona didn't have a lot of input or understanding when it came to that. Especially since her main element was water and despite the complications of the spell, she was now able to drop massive water hydras on top of people's heads. All in all, Sona already considered the training session a complete success. So, since she was free, Abaddon decided to put her to good use. That's how she came to take Akeno's previous role to an extent, acting as his cock sleeve as he worked on figuring out Destruction compression, merely, unlike Akeno, Sona actually got to fuck Abaddon. Still, there was a small complication here, Rias' jealous looks at Sona as she was forced to talk about magical theories while her childhood friend was having the time of her life drowning in pleasure.

Eventually, after a few more days, Abaddon was able to figure out the process of compressing a good number of Destruction spells — the ones with controlled outputs. He couldn't teleport huge Destruction explosions that would vaporize buildings, but he could teleport simpler spells that would massively aid him in one-on-one battles.

With that finished, the remaining three weeks were going to be solely dedicated to practicing control over Draconic energy, much to both Rias and Sona's chagrin. Neither heiress was fond of being overwhelmed by the external energy, unable to even process the pleasure that they were experiencing.

That's how the rest of the training session moved from the Gym floor to the floor below that. The girls didn't know when Abaddon made the decision, but one morning, the girls both woke up restrained and in the familiar environment of Abaddon's sex dungeon. Despite their outward resistance, Abaddon could see their excitement and made sure to stand up to their expectations and even exceed them.

***

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