Issei's OP gaming system

AFTERSHOCK, SO SUDDEN!?

After Grayfia had taken Issei back home, she started feeling drowsy, little by little she walked into many rooms in search of Issei's room; by the time she had already reached the room the alcohol's weight was quite heavy on her. After she gently placed Issei down on the bed, she closed her eyes to concentrate on the feeling of the bed.

She took a few more seconds than expected to open her eyes, but when she did, she was way too tired to even want to walk around; feeling tired and drowsy, Grayfia slowly closed her eyes, this time she wouldn't open her eyes for next 7-9 hours, Grayfia had fallen asleep on Issei's bed, in her sleep Grayfia moved a little to the left (where Issei was) she later hugged whatever she had bumped into and wouldn't let go.

(Next morning)

Issei felt a poke on his forehead, he slowly opened his eyes and there she was. Kuroka, Kuroka and her mischievous grin "Did you do it with her?" She asked playfully, "What are you talking about?" Issei asked as to where Kuroka sighed "so you got overwhelmingly drunk again~"

"Maybe?" Issei said still very confused as to what she was asking or saying "Idiot, Grayfia, Grayfia's holding onto you and wouldn't let go all night, it's honestly kinda cute" Issei looked at his chest and became flustered almost instantly "!?!?, I-i, What!?, I slept with her? NOOOOOO, I mean I wouldn't mind B-but, AHHH I don't remember it~" Issei was so panicked and he could tell Kuroka wasn't fazed by it at all, she had other things in mind, more serious things in mind.

Issei quickly escaped Grayfia's grasp (Kuroka took a picture of them asleep) "Hey Kuroka, Does anyone else know about Grayfia being here?" Kuroka said "No" faster than Issei could say or ask anything else.

Kuroka looked happy yet so worried at the same time (also playful as always) "Is something the matter Kuroka? do you feel ok?" Kuroka placed a finger over her lip and made the "shhhhhh" sound; "Issei, I'm honestly a little scared to bring it up, I've still decided to tell you now better than later" Kuroka took a deep breath in and let it out, she gave off a serious expression "Issei, I'm pregnant" After hearing these words, Issei tensed up and woke up all the way in the matter of a few seconds.

"P-pregnant? I'm going to be a f-father?" Issei looked down at the floor, he didn't say anything for a few seconds, Kuroka was a little worried and asked "Are you mad?" Issei looked at Kuroka for a moment, then her belly. "No, no of course not, I, I've just wan-wanted to make a family for so long, but not so early; AHHH WELL LET'S GO BUY EVERYTHING WE NEED"

Kuroka had used Senjutsu when she asked the question, she knew Issei was overwhelmingly happy (she could feel it) it's just that he was caught off guard and surprised, he didn't know how to act; but as Issei got ready alongside Kuroka, he wrote a note and left it for Grayfia. Issei and Kuroka were off to the stores.

(A few hours later)

After a few hours had passed by, Kuroka and Issei had gotten everything they needed. Issei was super anxious and delighted all at the same time, Kuroka on the other hand was excited and a little scared, overall else she was happy to be a soon mother.

(In front of the door)
A noise was heard, this noise happens to belong to Koneko, who was talking loudly due to Rias and Akeno's teasing, Grayfia's voice was also heard within the living room; Before opening the door Issei hesitated to open it because they were holding lots of baby supplies.

Everyone would see, so to avoid it he was thinking of different ways to get in without anyone seeing.

Issei could get in easily, but Kuroka opened the door far too fast for him to act, "Heya!" (Hey+ya=Heya) Issei froze up as the door opened, and everyone inside went silent. Seeing the things they carried, many of them asked themselves why they brought such things over, "Hey hey, guess what everyone, the girl, the Neko, the Issei virgin slayer has arrived and has news for all of you teehee~" Kuroka closed her eyes and said proudly "I'm pregnant" hearing these words coming out of Kuroka's mouth, Koneko closed her eyes (angered) and began to speak.

But before Koneko spoke, Akeno spoke out "congratulations on the pregnancy." Akeno cheered for them and looked genuinely happy, but this still didn't deter her from saying the next few words "I'll have Issei's children next fufufu" When Akeno said this, both Rias and Koneko went after her; Akeno gave Issei a wink and he knew what she had done on purpose (she had made things a lot less tense). 

"Looks like I owe her one," Issei thought as he sighed in relief. Even though there was far less tension in the air, things were still a little nerve-racking. "Wow, pregnant," said Rias as she nervously laughed, "Kuroka, is this some kind of a joke?" Koneko said loudly trying to make sense of the situation, "Nope, not a joke, I'm pregnant hehe~" Kuroka was nonchalant about it now that she told everyone she was pregnant.

Kuroka and the girls babbled on about lord of things for a little while until Issei decided to go upstairs, when he went upstairs a girl followed close behind and unnoticed by any of the other girls, this girl was Grayfia, she had been itching to ask Issei something.

Issei looked behind himself and saw Grayfa, both of them began to have a small chat very quickly after connecting gazes "Issei, so you're going to be a father, I'm delighted by the news, though I now worried you won't know exactly what to do, or how to take care of a child; May I help?" Issei thought about it for a second and everything she had said was very true.

Kuroka and Issei we're both very very inexperienced, they would definitely have a hard time taking care of the child "I can fight, take out a whole army of demons and other op monsters, beings etc, but this might be something to hard for me and Kuroka alone, and we're so young too" Issei thought to himself right before accepting Grayfia's proposal, "I'm not pressuring you or anything, I'm just offering my services, that's all" Grayfia smiled and turned around to go back downstairs, but Issei abruptly called out to her, "Grayfia!, I'll accept, I think it's a fine proposal, and a good thing for me and Kuroka, thank you" Issei lowered his head in respects to Grayfia.

"No need to be so formal or thankful, and I'm glad to help; SO I'll be coming over 4 times afull 7 day week, that's a deal, I'll inform Sirzechs about my absence in the near future, farewell Issei, and goodnight" Grayfia's left and Issei felt lucky to be having it so easy when it came to Kuroka being pregnant and Grayfia offering aid to them.