DxD: The story? No, my goal is to f*ck them all!

"Now comes the best darling" – I said with a smile.

Rias looked at me while panting so I smiled at her as I put my glans in front of her pussy.

"Be gentle please, it's my first time" - she said shyly.

"Of course" – I nodded.

Then I started pushing my hips through her pussy, to be honest it was tight, very tight, you could tell perfectly that she was a virgin, not only because of the pain that was causing to her or because of the thread of blood that came out of her pussy dirtying the sheet, but because of how tight her pussy was.

"Do you want me to stop?" – I asked as I watched her suffer from the pain.

I'm not a bad person after all, if I see someone suffering it's not that I can ignore it, I don't like problematic things but I'm not going to let anything to harm my women.

"No... I'm fine, you can go on" - she denied.

I nodded and thrust my penis deeper until finally everything was completely inside.

"You're inside me, your whole penis is inside" - she said with a smile as tears welled up from her eyes.

"Are you okay?" – I asked worriedly.

"Yes, you can move now, the pain has passed a bit" – she nodded.

I slowly started moving, I didn't want to move too fast because I wanted her to get used to the pain she felt first, when that pain was replaced by pleasure then I would start moving faster.

That didn't take long to come as soon her moans came and I started moving more quickly.

"For god's sake! What is this, how is it possible that it feels so good?" - she said between moans.

"Does it feel good?" – I asked with a smile without peer moving my hips.

"I don't know how to describe it but I don't want you to stop moving your hips never!" - she nodded.

I didn't know I was so good at sex.

[I guess everyone has a talent for something, you're lucky that your talent it's sex]

I ignored her words and started swinging my hips faster, then I put Rias on 4 legs, grabbed her shapely butt and started moving much faster while Rias moaned uncontrollably, her huge breasts swayed with every thrust i gave her pussy, her moans of pleasure echoed throughout the room without them being able to be controlled, her hair was disheveled and if she saw her own face she would most likely be smiling because of the pleasure.

"Kazuya this feels amazing, I didn't know that something could give me so much pleasure!" – she said.

"And we're just getting started!" – I said.

Then I spanked her and grabbed her hair using it to propel my hips faster.

It could have disgusted her, but she didn't, she didn't even flinch when I grabbed her hair.

"My God, Kazuya, I'm going to cum, I can't take it anymore, I'm coming!" - she shouted.

"I'm coming too, take it all in your womb!" – I said with a smile.

"Yes, please stain my entire uterus with your upper semen!" - she said.

Then I grabbed her ass and cummed inside her while she was also squirting, dyed her whole pussy white while we were both panting, but that wasn't the end, my vigor was huge, so I grabbed her, put her against the wall and started fucking her again relentlessly.

"Kazuya I am very sensitive, let me rest!" - she said between moans.

"Your pussy doesn't say the same thing, today I'll fuck you all night, get your pussy ready because I'm going to fill you with my cum!" – I said.

I let myself be carried away by the heat of the moment and got a little aggressive but she seemed to like it.

"Yes, please stain my uterus with your semen, I want it all inside me!" - she said.

To summarize, I fucked her for hours and cum dozens of times inside her pussy while she moaned and cum without any control, until finally, around 4 at dawn, Rias fell asleep in my chest while my cum came out of her pussy, I was still hard but I decided to let her rest.

[It was an intense session]

"Yes, I didn't think I could cum that much" - I nodded.

[And to whom do you owe a thank you?]

"Thank you System" – I thanked.

As my mother used to tell me in my previous world, it is good to be grateful, so obviously I thanked her.

[You're welcome, i'll say you something you like it, do you want to check your rewards?]

"Have I earned rewards?" – I asked curiously.

[I'll assume you're so tired that you haven't noticed who you've fucked today]

Right, I fucked the main heroine!

[Exactly]

"Well, show me my rewards" - I nodded.

[Congratulations to the host for conquering and fucking Rias Gremory, the most important heroine of all High School DxD, for this great feat you receive the following rewards: Gomu Gomu no mi and Body Strengthening!]

"What, is this serious?" – I asked in surprise.

[Seriously]

"Unbelievable, hahaha, this is amazing!" – I said excitedly.

[Lower your voice or you might wake up Rias]

"True, I was excited but I never thought I would have Luffy's powers" - I said with a cheerful smile.

[Well, the system assumed you'd like to]

You should know that One Piece was one of my favorite anime in my previous life along with Dragon Ball, and unlike many protagonists I loved Luffy, so you can imagine why i was so happy.

"Body strengthening is also fine, it will help me increase my strength, by the way, How do I receive the fruit, is it in a kind of storage or something?" – I asked curiously.

[You don't have storage yet, as for your first question, just think you want it and it will appear in your hand]

I nodded and thought in my mind that I wanted the fruit, suddenly, in my hand appeared a strange violet fruit with a green stem.

"Well, here we go, I hope it's not as bad as they said in the anime" - I said.

Then I put the fruit in my mouth and bit into a piece of it, it immediately made me want to throw up, It was disgusting, I'd bet the shit tasted like this.

[Cheer up host, think about the benefits and swallow it whole]

I nodded and as I could I ate the whole fruit, but I didn't notice anything.

"Why don't I notice anything?" – I asked confused.

[Try stretching a part of your body]

"Okay" - I nodded.

Then I grabbed my cheeks and pulled, it was a very weird feeling, my cheeks had stretched in a way that a normal person wouldn't be able to stretch.

[Does it work or not?"]

"It works" – I nodded.

Then I fixed my eyes on my clothes lying on the floor and tried to stretch my arm, the arm stretched perfectly, but I could not aim well and had to make about 3 attempts to be able to grab only my shirt.

"I think I have to practice" - I said, looking at my hand.

[Yes, but it's easy, you'll get used to it very fast]

"By the way, one thing, aren't there more rewards?" – I asked.

[What do you mean? I already gave you the rewards]

"No, but whenever I read a fanfic, the system took away the weaknesses of the devil fruit, won't you do the same for me?" – I asked curiously.

[Not at the moment, those are the rewards, you will have to put up with what you have, but you should not worry, there will be practically no occasion when you have to swim]

"And the haki?" – I asked.

[Since in this world haki does not exist, you depend on the system to obtain it, keep conquering heroines, and maybe the system will reward you with it]

"Haa... Not bad but you could have told me before I ate the fruit" - I sighed.

[I already issued the rewards, they description were clear, it's not my fault that you don't pay attention]

"It doesn't matter, anyway, tomorrow I will practice, I will sleep a few hours for the time being" - I said.

[Good evening host]

"Good evening" - I said.

Then I closed my eyes and fell completely asleep.

...

The next morning.

I do not know how many hours I slept but when I rose the rays of the sun already illuminated the room completely, for a few moments I was thinking about what had happened yesterday and when I remembered everything I simply sighed.

"What's the matter, honey?" – a voice asked.

I quickly saw that the voice was coming from the sheet, so I picked it up and saw how Rias was sucking my cock.

"It looks like that you're having fun" - I said as I enjoyed her blowjob.

"I read on internet that a woman should wake up her man like that, do you like it?" - she said.

"I love it, keep it up" – I nodded.

Then she started sucking my cock again until I cummed in her mouth, after she swallowed everything she stood next to me and leaned her head against my chest.

"Now you're my wife Rias" - I said suddenly.

I thought she was going to complain or something but I was wrong.

"Yes, I am your wife, but Kazuya, I must tell you something important about me" - she said.

"Tell me honey" – I said with a smile.

She came out of my embrace and stood in front of the bed and without warning pulled out her wings.

"I am a demon" - she said.