The following morning, when I woke up, I found myself on a soft bed in a room with a high ceiling. Beside me lay a naked busty beauty, peacefully asleep. Faced with this reality, I breathed a sigh of relief.
"Thank goodness. It wasn't a dream…"
The sensation of the well-endowed breasts pressing against my bare chest, the sweat sticking to my skin, the cool air conditioning breeze, and my morning erection that was surprisingly stiff despite already having ejaculated twice yesterday—all of these were undoubtedly real. Still, a slight unease crept over me, so I decided to plunge my right hand into the plushness of Shizuki's breasts.
"Nh♡"
Shizuki let out a soft moan. As I traced my fingers along her curves, making sure not to touch her pink nipples, they swelled and hardened. Just as I was massaging her breasts like I was harvesting ripe cherries, Shizuki's brown eyes gazed at me.
"Nh♡ Good morning, Yuki-san."
"Good morning, Shizuki."
"Nh♡ Um… I have to tell you, when you pinch my nipples like that, it makes me feel… so, if you could stop… nh♡"
Shizuki's moans escaped her lips intermittently as she hesitantly requested me to stop. But who could resist such a request? And especially considering her sensitivity, I wouldn't believe a man could hold back. Not even one.
So, I continued exploring. I began massaging her other breast.
"Ahn♡ If you're going to be like that, then I'm not holding back either!?"
Shizuki protested and reached down to my lower body. She seemed surprised by what she encountered.
"W-What… no way. Why is it so hard and hot? Why is it erect!?"
"Well, it would be cruel to say no when you're as beautiful as you, Shizuki."
After all, morning erections are just a physiological occurrence.
"I-It's really nice of you to say that, but… You know, Yuki-san, if a girl gets semen inside her uterus, she doesn't get wet until she has a baby. So, if you could, um, avoid that…"
"Seriously?"
"Didn't you learn about this in health class?"
"Um…"
I had never heard of it before.
"So, do boys not learn about it? Boys are a lot rarer in this world, like 1 in 1000, so there aren't many of them. And on top of that, boys only ejaculate once a month on average. Because of that, women don't usually get many opportunities for sexual activity. When semen is introduced into their bodies, they want to make absolutely sure they conceive, so their sexual desires decrease, and their cervixes close up temporarily. People usually call it a 'temporary menopause response' or, well, it's commonly referred to as a 'new moon phase.'"
A 'new moon phase' because the period stops when the moon is new.
With the world's male-to-female ratio being 1:1000, I was rather impressed by their naming sense. But more importantly, I was slightly shocked. Ah, I see. Shizuki can't have sex now.
I wanted to have sex. Last night, even with my clumsy technique, Shizuki, wriggling under me, was so cute. If I could, I'd want to do it over and over again.
However, she wasn't wet, and I couldn't forcibly penetrate her.
"So… how about giving me a paizuri?"
"Paizuri? … What's that?"
"It's when you sandwich my penis between your big breasts and perform oral sex."
"Oral sex?"
"That means using your mouth to lick my penis and make me ejaculate…"
"W-Where does your semen go when I make you ejaculate?"
"It either goes straight down your throat, or if you don't like that, you'd spit it out into a tissue or something, I guess?"
"No way! You'd rather waste such precious male semen without ejaculating it into the uterus? Do you realize you'd become a criminal?!"
Shizuki widened her eyes and dramatically proclaimed her concerns.
"Can you imagine the police intervening just for a simple blowjob?!" I was tempted to interject with such a comment, but then I realized, in this world, men reportedly ejaculate only once a week, at most.
With a staggering male-to-female ratio of 1:1000, for the population to be sustained, each man needs to impregnate about a thousand women. Otherwise, the population would decrease rapidly.
…A declining population would threaten the survival of the nation. Would that mean you could be charged with a crime for wasting semen?
What a predicament!
In this world, semen is so valuable that any sexual play that doesn't lead to vaginal ejaculation is considered a crime. In other words, whether it's paizuri, fellatio, handjob, or even thigh sex, if there's no vaginal ejaculation, it's guilty.
Furthermore, once you ejaculate, you can't have sex the next morning.
For someone like me, who would love to ejaculate two or even three times a day, this was quite the disappointing situation.
As I visibly moped and showed my dejection, Shizuki became flustered.
Then, she looked at me with an expectant expression, blushed slightly, pursed her lips and let out a sigh. Afterward, she began probing.
"Um… but… Yuki-san, you were really vigorous yesterday, and if I'm not mistaken, you ejaculated twice, right?"
"Yeah."
"However, um… so, Yuki-san, can you, like, ejaculate multiple times in a day?"
"Well, I could even go three times if you want."
"E-Even though you ejaculated twice yesterday? W-Weren't you already giving it your all?"
…Well, doing three in a row might be a bit challenging. Shizuki's eyes shifted around, and she seemed a bit suspicious.
"Y-Yuki-san, you seem like a character straight out of an erotic manga."
I swallowed the retort that "That's my line." Instead, I voiced another thought.
"You read erotic manga, too, even though you're as beautiful as you?"
"W-Well, of course!!"
Naturally, huh? In a world where sexual interactions are scarce due to the extreme gender imbalance, it's probably more likely for attractive girls to be into erotic manga than it was in my original world.
Thinking about erotic manga and imagining Shizuki, I felt myself getting excited.
"So, um… even though wasting male semen is a crime, there are no surveillance cameras in this room and there are only the two of us here, right?"
"Y-Yeah."
With those words, I felt a surge of hope, and my slightly deflated penis quickly regained its stiffness.
"Well, since Yuki-san can ejaculate multiple times without being detected, it's unlikely we'd get caught. Plus, it's a rare opportunity for a woman to make a man ejaculate orally. I mean, it's a secret, if you promise not to tell…"
"I promise! I won't tell anyone!"
"You… you swear? I believe you, okay?"
As she said that, Shizuki's gaze was already fixed with great interest on my erect penis. Whether it's due to the 1:1000 gender ratio in this world or something about Shizuki herself, she seemed intrigued. She looked adorable during sex.
"It's okay. I won't tell anyone."
Saying that, I kissed her, and Shizuki blushed before bringing her breasts closer to my erect member.
"U-Um, how should we position ourselves? I mean, is it good if I kneel between your legs and use my mouth to lick your penis while it's trapped between my breasts?"
"…That's good too, but if possible, I'd prefer if I sat on the edge of the bed and you could sit in a way where you're facing me."
As I said that, Shizuki obediently got off the bed. I also moved on the bed, positioned myself on the right edge, leaned slightly forward and spread my legs a bit.
Without any words, Shizuki kneeled in front of me between my legs.
Her face was now right in front of my fully erect penis.
"W-When I see it up close, it's really big… T-To think something this big could go inside me."
As she said this, Shizuki stroked her fair abdomen. Transparent pre-cum had started seeping from the tip of my penis. I wanted to ejaculate inside her small and pretty mouth.
Shizuki lifted her ample breasts, sandwiching my penis between them. She shifted to a slightly forward-leaning position, her face emerging from her cleavage. Then, she closed her lips around the enlarged head of my throbbing, reddish-black penis.
"I-Is this, is this how it's done?"
"Ah, yeah. It feels incredible."
Frankly, getting my penis sandwiched between breasts wasn't all that exciting. However, the joy of having my penis nestled within Shizuki's ample bosom and the satisfaction of seeing her kneeling before me, her mouth wrapped around my member while she looked up at me, ignited a feeling of conquest.
Shizuki's tongue flicked my glans delicately. The stimulation was gentle and a bit frustrating. She seemed to be cautious not to use her teeth, probably due to inexperience. Despite that, I found her efforts endearing—she was trying her best even though it was her first time.
"Could you, um, suck it more?"
With a slurping sound, Shizuki complied, her face taking on a thin, focused expression. The sensation was entirely different from when I handled myself or even from yesterday when we had sex.
Though less intense than masturbation or intercourse, the sensation of Shizuki's breasts sandwiching my erect member, her pink nipples jiggling with every movement, and her diligent efforts to pleasure my penis while looking at me with upturned eyes—all of it excited me. Her oral stimulation was frustrating, but it still provided substantial pleasure. I felt my hips twitch involuntarily, my testicles tightening.
"Ugh, I'm coming!"
With a 'splat', semen burst forth. Startled by the sudden eruption, Shizuki released my penis from her mouth. As a result, my ejaculate splattered across her face.
…In the past, when I'd searched for erotic images, I'd found facials dirty and unappealing. But seeing my own semen on Shizuki's face, I felt a deep affection.
Shizuki moved her lips in a 'munching' motion, swallowing down my ejaculate.
I wish she had opened her mouth to show it to me, but I hadn't asked in advance. Besides, after receiving a paizuri-fellatio combo from a beauty like her, I wouldn't ask for more indulgence.
I reached for several tissues that were on the bedside table and gently wiped Shizuki's face, which had been splattered by my semen.
"Sorry for messing you up."
"No, not at all. I should be the one thanking you for ejaculating."
Shizuki's lips curled into a slightly disheveled smile, and then she bowed apologetically.