Rias Belly Dances

In High-School DxD ova 2, Rias Gremory and her peerage visit a museum. They're there because one of her clients Professor Nishiura called her there to help him examine what he believed to be a cursed sarcophagus. The reason for this is because all the researchers who studied it up until now either fell ill or met with a random accident.

Upon getting a look at it, she and everyone else could feel the evil admitting from it. Also as they looked at it, Issei mentions some hieroglyphs on it looked like breasts. He scolded himself for that, but Ironically, Nishiura replied saying some of the text on the Sarcophagus says "I'll only awaken to a big breasted Devil beauty."

Rias decided to get a closer look at it. But as she bent over to do so, she ended up pressing her breasts against the same hieroglyphs Issei mentioned and the sarcophagus reacted to such. It opened up revealing a mummy. After that, it opened it's left eye which glowed red and then looked at Issei who started twitching. It's then revealed that the spirit of the mummy possessed him and took control of his body.

The Mummy's name was Unas, a high priest and shaman who was sealed away alive by a Devil woman from Agares Clan for making a move on her. He neglected to tell everyone why he was sealed and lied about being dead and just wanting to move on. He did this along with refusing to give Issei's body back to get Rias and everyone to set him free.

Rias happily agreed to his conditions as she didn't see a problem with it and because she had to get Issei back. When she asked what she needed to do to set him free, he revealed he had 3 cursed set upon him. He while staring at her breasts stated they can only be broken by Devil beauty.

For the first curse, he while staring at her with an evil grin and laugh rummaged through his sarcophagus without looking. He then quickly whipped out an Egyptian belly dancing costume. A quite notably skimpy one at that. As he held it out to her, he ordered her to wear it and dance for him. Issei being himself was excited by such an idea, while Rias was showing a clearly unamused face. But she begrudgingly agreed to it for Issei's sake.

Later the room is dark and is then lit up by a pink spot light. Under this light, we see Rias posing in the costume Unas provided her. It bared her legs as it only came with ankle rings, same for her arms with slave bracelets. Her belly completely exposed as she wore only a top that covered just her nipples and a cheeky bottom that barely covered her front.

As she starts to dance, we see everyone except Yuuto react to her indecency. Unas/Issei gripping his hands with excitement. Asia held her hands against her chest as she couldn't believe what she was seeing. Koneko was the same as her, but with a bit of "Are you serious?" mixed in. Akeno smiled, but her eyebrows showed she felt bad for Rias. And Nishiura stared at her in awe.

Despite this, Rias put a smile on her face as she belly danced in the skimpy costume. Her crotch lining showing with every moment, her breasts bouncing ever freely, and her butt shown off as she shook it. Unas and Issei both stare on thinking what they see is a wonderful sight, feeling no guilt as Rias humiliates herself before everyone.

Later after her dance, we see her still in the same costume as they continue to try and remove the other 2 curses. Through them both she stayed dressed like that. Even after Unas's freedom and when talking to Nishiura about killing him, she stayed the same. She even went into battle in said outfit. She only stopped wearing it when Issei used his Dress Break to free her thus destroying it and leaving her completely naked. Despite her lack of shame through all this, she was embarrassed being seen by Unas and Nishiura like this as she refused a request involving a cursed Sarcophagus because of it.

High School DxD DX - Volume 6 - Chapter 4

Life 4. Devil's Work Practice Course

Although the OVA came first, several years later Ichiei Ishibumi release an official Light Novel version of it. The 2 are very much alike, but the Light Novel had some differences as well enplaned upon the story.

For starters, Nishiura wore glasses and it was established that during his search for the truth was how he found out about Devils. We also don't have Rias press her breasts against the Sarcophagus. Instead the shadow of her breasts touched the hieroglyphs and caused Unas to awaken.

Unas also acted differently. He didn't sound arrogant as merely explained his dilemma. He also didn't lie about being dead. And while he possessed Issei, he didn't hold him hostage the same way. Rather than saying he wouldn't return his body unless helped, he acted like a victim as he said he couldn't.

Rias sighed at his request before asking Nishiura if breaking the curse was ideal. After he said yes, she agreed to set him free to please him and rescue Issei. When she asked what she needed to do, he was silent for a moment as his gaze fell to her breasts. Much to Issei's annoyance. He then continued to speak while staring at them.

He explained to her that he had 3 curses and that only the cooperation of a beautiful Devil woman could lift them. When she asked what kind of dispel would be used he started searching his sarcophagus and brought out the skimpy belly dancing costume.

He asked her if she would wear it and dance for him, saying it was the only way to dispel the first curse. We also see Unas trying harder to make her do it as he again says he wants her to put it on. All while Rias was showing an uncomfortable expression. But Unas kept trying to pressure her as he said if she wears it and dances that it'll work.

As much as she didn't want to, Rias with a sigh and nod agreed to do it. We then have her wearing it as she dances under a spotlight to light music. As she does, her breasts and butt were in danger of slipping out due to the lack of fabric. But she was a skilled enough dancer to avoid this.

Rias showed a clearly embarrassed expression as she danced. But Unas felt no sympathy as he watched her dance. He even stuttered as he called what he was seeing wonderful. And he continued to watch her breasts and butt shake with keen eyes. While Issei was annoyed by him getting thrills out of this, he still thanked Unas for letting him see Rias like this.

Rias belly danced for 15 minutes before Agares clan mark appeared on the Sarcophagus and broke off a piece of itself. Unas claimed this was a sign that the first curse was lifted and thanked Rias for what she did. Whether or not Rias was still wearing the costume was never established.

Things to take note of:

1 - There's concept art for Rias in her belly dancing outfit. In this we see 2 things. They had been working on the ova for about 9 months prior to it's release. And we can also see Rias blushing in the outfit. This implies she originally supposed to be bashful in the anime version like she was in the later release light novel version.

2 - The idea that Unas secretly wanted to be resurrected didn't play a part with Unas admitting he was alive. He was being released because Nishiura wanted help from him in his research. Rias even admitted she didn't plan to fight him before asking Nishiura if it was okay to kill him. This would mean she was willing to let him get away with enjoying her humiliation.

3 - The Dress Break took place in the Light Novel just like in the Anime. And Unas reacted to it the same way. This means he's the only man besides Issei who's been Light Novel confirmed to have seen Rias naked. Nishiura possibly saw her, too, but it was never established.

4 - After the whole thing, like in the original, Rias got another request for a sarcophagus. All the same, she refused saying she went through a lot of embarrassment. But she also said they couldn't even get the job done because of it. Meaning she went through with the dance not just for Issei, but for Nishiura. Or at least helping him was on her mind despite what she was going through.