A/N: Ahahahaha... this chapter gonna be... a bit more mature-y than I usually do... so yeah 8P

It's been a few days since Keiwa started to live with them. At first, he had been worried that something must have happened between Keiwa and Sara-san to the point that they had a row and Keiwa decided to leave home. But then Keiwa reassured him that there was nothing wrong—besides the fact that Sara-san had been teasing Keiwa about being so affectionate for him to the point that he couldn't stand it.

After hearing that Ace couldn't decide whether to feel guilty or flattered for being the reason for the two close siblings to fight.

Regardless, talking about being affectionate... Ace couldn't help feeling 'lonely' lately.

Not that Keiwa hasn't been attentive to him for the past few days. In fact, Keiwa had been such a wonderful boyfriend. Aside from the time he had been studying again for his job interviews and stuff, Keiwa had been accompanying him to his doctor's appointments and taking him out on dates and cooking him nice meals at home... and there's nothing else he could ever complain about him. But, if there was anything else he desperately wished Keiwa could provide for him right now... was for the two of them to become more intimate with each other. Not that they weren't already so affectionate with each other and so close—just that, ever since Ace had told Keiwa about his special circumstances... Keiwa hadn't been touching him as much as they used to touch each other in the past.

Not that he hadn't tried to coax Keiwa to get intimate with him again, but every time they were about to get in the right mood... Keiwa always managed to divert them to doing something else. In other situations, he could have praised Keiwa for their determination to protect his chastity... but enough is enough!

It's not as if either of them were still 'virgins' when it comes to having sex with each other...

Aaaaah, why couldn't Keiwa just take him in and ravage him already? Stop being such a sweet gentleman and just take him whole!

xxx

That night, Ace had come over to Keiwa's room... wearing a cute shirt and a fluffy short skirt. Keiwa had immediately flushed red at seeing him in that attire, and that pleased him immensely. He already knew that he had a pretty nice-looking pair of legs and Keiwa surely wouldn't take his eyes off him!

Ace jumped on the bed and dragged Keiwa along to sit next to him.

"Ne... Kei-chan!"

Keiwa just grinned at him as Ace acted coquettishly. "What?"

Ace just smiled at him mischievously. "I didn't wear any panties tonight!" he said as right away Keiwa's face became red.

"R-really?" Keiwa stuttered as Ace lifted his skirt up to show him that he really wasn't wearing anything under his skirt.

"You can touch it if you want—" said Ace again before grabbing Keiwa's hand and placing it over his exposed butt. But as soon as Ace guided Keiwa's hand towards his crotch... and towards his vagina—Keiwa hastily pulled his hand away from Ace's grip.

"A-Ace! W-what're you trying to do?" exclaimed Keiwa again as he kept stuttering. Ace started scooting closer towards Keiwa and cornered the other man with his legs.

"Ne, Keiwa... please? Can we do it tonight? Please... I want to be intimate with you, like really intimate... It's been too long. Please?"

If smoke could come out of Keiwa's head, it would've already done so by now... from the way Keiwa had been looking at Ace and trying to not stare at his legs and pussy. Keiwa nervously licked his lips.

"Umm... A-Ace? By any chance... have you started getting your monthlies recently?"

"Hmm?" Ace exclaimed as he wrapped his legs around Keiwa's waist and pulled Keiwa into an embrace. He grinned. "What do you think?" he asked before shrugging.

"Of course not... or else this bed would've already become a bloody mess." Ace frowned at him. "Why? Would you not want to do it if I'm nearing my cycle? Or are you gonna argue about me being super horny for you right now?"

"N-no..." Keiwa hastily shook his head. "No, I wasn't implying that—" he sighed, "—I mean, once a while I used to see Big Sis being weird—I mean just because I'm her brother doesn't mean that she can keep teasing me about trying to explore my sexuality (like seriously, just because other people were doing it... doesn't mean she can just assume he's off hiding himself inside the room watching some porn vids) or hearing her listing all of her fantasy about what kind of a perfect husband she could try to find in the future; not that I even wished to have to meet a new 'brother-in-law' so soon or whatever—"

Keiwa shrugged at Ace. "I mean... if you're really nearing your cycle—" he blushed again as Ace found that cute, "—aside from the hormonal imbalance and everything, wouldn't you be hurt if I tried to..."

Ace gasped as he realised what Keiwa was trying to say...

"—it's fine! I trust you that you could be gentle for me—you've always been that way for me. So please..."

"B-b-b-but! Ace—! This is still my first time doing this, so I'm kinda afraid—!"

"It's the same for me too! But I still want you inside m—!" Ace quickly clamped his mouth shut as now both of them were blushing all over out of embarrassment...

.

"Umm... anyway, since we're not really be doing anything with each other right now, Keiwa... can you help me with something?"

Keiwa immediately blinked at him. "Umm, help? With what?"

Ace immediately got off Keiwa's lap (Keiwa let out a big breath he never realised he had been holding) before walking towards a small cupboard and grabbing a box that had been placed on it. Keiwa also couldn't help noticing that there was also a box of condoms and a bottle of lube nearby. Since when had those things been there? Ace?!

Ace hopped back onto Keiwa's lap as he had to try his best to think about Ace's bare round bottom on his lap. Keiwa couldn't help cursing inside. Why did he have to be wearing just his sweatshirt and his shorts at this time of night? Of course, it's still somewhat summer right now, and the temperature has been quite warm lately... ah, why did Ace have to do this right now?

The person in question started pouting at Keiwa. "Ne, Keiwa... since you mentioned it earlier, could you help out in figuring out how to use this thing?"

When Keiwa glanced down to see what was it Ace tried to show him, immediately he felt as if he had just jumped into a tub of hot water again. Why was Ace showing him a box containing a menstrual cup? Did he want his help to figure out how to use this thing?

"Err... Ace? What do you want me to do with this? Do you need my help to figure out how this thing works? Did Hinamori-sensei tell you about this? Didn't she show you how to use this?"

Ace started nodding his head as he glanced up at Keiwa, full of expectations. "Yes!"

Keiwa felt his cheeks burn. "Then—?"

"Can you help me with this? I mean, Hinamori-sensei did show me how to do it... but it's not like I actually tried it on myself so..."

Keiwa shook his head rapidly at him. "N-no! I can't—this is impossible! Can I just buy you some menstrual pads? Tampons? Those should be easier to use... right? I mean, I used to help my sister to get them once in a while so I know some of the better brands—"

"Unn... I wanna learn how to use this!" Ace insisted again, pouting his lips. "You had no idea how it used to be for young girls back then in the 1940s. We had to use scraps of clothes and stuff—while I know nowadays it should be a lot more convenient compared to the old days, I didn't want to deal with that again this time. Ne, teach me—?"

Keiwa eyed the fox in front of him suspiciously as Ace had been acting very womanly right now.

"Really? Or was this just an excuse for you to get me to play with your pussy?"

"Ah! You caught me—!" exclaimed Ace before sticking his tongue out at Keiwa. "Then, is that a no?"

Keiwa started to exhale and inhale loudly as he tried to rapidly calm his rapidly beating heart. So that explains why Tsumuri happened to be staying over at their apartment with Sara while he's now left alone with Ace at Ace's house. Well, he had no one to blame for this, since he was the one who decided to come to stay at Ace's place after that last row with his sister.

Not like he could back away from this now... could he?

xxx

So Keiwa steeled himself for the task and Ace shyly laid himself open for Keiwa and they started to figure out how to use the 'cup' properly while reading the manual as well as visual aids. After a few trials and failures, they managed to figure out what to do... and Ace was actually quite comfortable having such a thing positioned deep inside him. So when Ace finally gets his monthlies... he should be able to take care of things by himself.

Keiwa almost fainted right away when Ace joked that he should help him with the menstrual cup every time the monthlies came.

.

And well... after spending almost trying to figure out how to use the menstrual cup for almost two hours, Keiwa had been touching Ace intimately for quite a while as well, right? So there should be no doubts about what ended up happening between them afterwards that night, right? So someone did end up getting their wish... right?

Well, it's not like Keiwa also had anything else to complain about. At least, for tonight.

A/N2: Ehehehehe... I'll figure out how to close this piece later. XD