1. Nipple Development
1. Nipple Development
I want to devour him.
That's the main thought I have while looking at the boy currently sitting on my bed.

"Sena, what are you thinking about so deeply?"
My childhood friend, Kim Haru, who speaks to me while looking at me with innocent eyes.
We've known each other since kindergarten, went to the same elementary, middle, and high schools, and even entered the same university this time, majoring in business administration just like me.
"A very fun thought."
"What is it? Tell me too."
"I can't do that."
"Hing..."
Of course I can't tell him... If I were to write a book about all the fantasies I have about Haru, the government would definitely ban its publication.
You could say Haru looks incredibly erotic.
Round, innocent eyes.
Slightly tanned, brownish skin.
The white bare skin peeking out from inside his clothes.
The hair he grew out at my suggestion, tied up in a ponytail.
An appearance that truly feels like my sexual preferences were brought to life in reality.
I want to completely mess Haru up and devour him...
I sat down close next to Haru.

"I'm bored."
"U-uh, really? Should we play a game?"
I can see Haru getting visibly flustered.
He always gets like that when I wear comfortable clothes at home and cling to him.
Honestly, it's been a long time since I noticed that Haru likes me.
But it's funny how Haru tries so hard to hide it even though it's completely obvious, and since he shows such cute reactions even when I just slightly seduce him like this, I decided to just watch him for now.
"Sounds good. Let's play that fighting game we played last time."
I purposely pressed my body even closer against his as I grabbed the controller.
Every time my thin short-sleeved t-shirt brushed against him, I could feel Haru's shoulders flinch.
Far from focusing on the game screen, Haru, who was stiffly frozen while only walking on eggshells around me, naturally lost every round.
"Ah, I lost again..."
"Fufu, Haru is a noob~"
Seeing the reddened tips of Haru's ears as he smiled sullenly and scratched the back of his head really turns me on.
*
It was well past 11 PM when Haru finally returned to his own place.
Anyway, Haru and I live in the same officetel, right next door to each other, so it's a distance of just opening the door and taking five steps.
So on Fridays or the day before we had no classes, we would often hang out late into the night at my place or Haru's place.
After taking a shower, lying in bed, and messing around on my phone for a few hours, it was already 3 AM.
Hmm, I can't fall asleep...
As I was mindlessly scrolling through the Reels tab, a video of a newly released game popped up.
I bought this together with Haru, but it suddenly looks fun.
I rummaged through my game cartridge storage, but I couldn't find it.
Did I play it at Haru's place back then and leave it there?
I want to play it right now... but Haru is probably sleeping.
Since it was past 3 AM, I didn't really want to ring the doorbell and wake him up.
I know his house passcode anyway, so I can just quietly sneak in and take it.
And I can see Haru's sleeping face while I'm at it. Maybe that's my real objective.
I came out of my house and touched the keypad of Haru's door lock.
Beep, beep, beep, beep. Click.
Huh? The lights are on...

"Haa... Ugh..."
What I saw right in front of my eyes was Haru, sitting on the chair in front of his desk and moaning.
And one of Haru's hands, directed under the desk, was gripping something and moving busily.
A squelching sound could be heard.
Haru's gaze was fixed on the smartphone screen he was holding in his other hand.
On that screen was a picture of me wearing a swimsuit, taken when Haru and I went to the beach last time...
When I made my presence known, only then did Haru look to the side.
"Ugyagat!!"
Startled, Haru let out a scream and hurriedly took his hand off his cock.
He frantically pulled up his pants and used one hand to place his phone face down on the desk.
...
A brief silence flowed as Haru and I locked eyes.
Haru's face turned bright red, looking like he was about to cry at any moment.
"Se... Sena, so you see..."
"Uh... I interrupted your good time. Hahaha..."
Just as I smiled awkwardly and tried to slowly slip away out the door.
"Wait a minute..."
Haru tried to get up from his chair to say something, but tripped over a power cord and fell.
Crash!
"Uwaak!"
Haru collapsed in a pitiful posture.
"Gasp..."
I hurriedly went over to Haru.
Because it made quite a loud noise, and I was genuinely worried.
"Are you okay? Are you hurt?"
"Uung.... Sniff... Uwaaah..."
Oh dear, he ended up crying...
"I'm sorry, Senaaa... Sniffle. For doing that kind of thing with your pictureee... Hiccup."
"No, it's really okay..."
Really.
I'm actually turned on, to think Haru was masturbating to my picture.
"P-please don't hate me..."
....
This is driving me crazy. He's way too cute.
A switch inside me flipped on.
"You know. If you're jerking off while looking at my picture, does that mean you like me?"
Now I started speaking according to my desires.
"...! U... Uung... I've liked you for a long time... Sniffle."
Haru panicked for a moment, but then honestly confessed.
"Heeh...."
"Uuu... I'm ruined... To show you such a pathetic side of me... Hiccup."
I crouched down and stared intently at Haru's face, who was trembling like a terrified puppy.
Then, I grabbed crying Haru's chin and kissed him just like that.
"Eup..?!"
I practically shoved my tongue in and rolled it around as much as I could.
Chup... Chup...
Maybe because he was crying, it tastes quite salty.
I liked that there was no resistance.
It was my first kiss, but the sensation of our tongues touching was wet and soft, making me quite aroused.
Puha...
When I pulled my lips away a moment later, Haru's face was quite a sight to behold.

"...? ? Se... Sena.. Just now...."
"Ufufu... You know. I like Haru too."
Perhaps because Haru was dizzy from the lingering feeling of the kiss, he didn't seem to be grasping the situation very well.
"So... I'm really happy♡ That Haru masturbated to me."
"Eeh...."
"Should we go out?"
"R... Really? With me?"
At my suggestion to date, Haru asked back as if he couldn't believe it.
"Really."
"Un.... I want to date Sena...!"
"Fufut... Good. Then we're lovers starting today."
"It feels like a dream... To think Sena liked me..."
Haru's eyes were red, but he soon smiled foolishly and repeated himself.
Watching Haru look like that, I felt a lewd desire consume me all the way to the top of my head.
"Then... Should we kiss some more on the bed?"
"...! Un!"
I grabbed Haru's arm, led him to the bed, and pushed him down.
I straddled Haru and pressed my lips against his once again.
Chup... Chureup...
This time, Haru moved his tongue too.
But it was just at the level of flicking it in and out, so it was a bit funny.
"Uung..."
A moan leaked out from Haru.
I could feel something hard pressing against my stomach.
Looks like he's hard...
I parted my lips and looked at Haru's face.
Hazy, unfocused moist eyes and heavy breathing.
I'm finally seeing this in reality, not in a fantasy.
"Haa... Haa... Sena... I like you..."
Haru said while panting.
Hearing those words made me so aroused that my head tingled, so I decided to try something a bit more erotic.
I used my finger to trace a circle and rub the center of Haru's shorts, which was fully pitched like a tent.
"Ah...!"
"You know, the thing you couldn't finish earlier. Should we do it together now?"
"I want to...!"
Oh, he's quite proactive.
However, Haru soon lowered his head.
"But... It's my first time, so I don't know what to do or how..."
Looking at Haru saying such cute things while completely intimidated, a slight sense of sadism welled up inside me.
"Fufu... It's okay. It's my first time too. Then should we try doing what we want to do to each other?"
"U-uh.. Should we?"
"Haru, you say it first. I'll do whatever Haru wants."
"Uumm....."
"Then I want to touch Sena's b... breasts..."
Haru pondered quite seriously before speaking in a voice that gradually trailed off.
For a 20-year-old male, that's a fairly modest request.
Well, he used to steal glances at my breasts whenever I wore revealing clothes anyway...
"Okay."
I took off my short-sleeved t-shirt and even my bra, leaving my upper body completely bare.

"Uwaah...."
Haru couldn't take his eyes off my breasts.
What's with that innocent reaction.
I pulled Haru's hand, who didn't know what to do, towards my breasts.
"You can touch them, you know?"
Perhaps Haru's hands were sweaty, the touch felt damp and warm.
"...!"
Haru hesitated, but then, as if making up his mind, carefully began to massage my breasts.
"Wow... They're so soft..."
I usually touch my breasts when I masturbate, but it felt even better when Haru touched them.
It was nice watching Haru stare intently at my breasts while massaging them, but something was missing...
Breasts... Breasts, huh.
Right. Shall I try developing them?
"Hey."
"U.. Un?! Does it hurt by any chance?"
Haru, who was engrossed in touching my breasts, answered with a slight startle.
"No, it feels good. I want to touch Haru's chest too."
"Huh...? But I don't have breasts..."
"Fufut... Breasts aren't only things that stick out, you know. Just take off your clothes for now."
Haru hesitated awkwardly, but soon took off the short-sleeved t-shirt he was wearing.

The white inner skin, contrasting with the slightly tanned parts, was revealed.
His nipples were pink, which was incredibly arousing.
"This is really embarrassing..."
Haru said, laughing as if he was embarrassed.
"Can I touch them?"
"Un... Touch them all you want!"
I tried lightly massaging Haru's chest.
He's skinny, but surprisingly has some muscle.
Is it because of his tennis club activities?
Hmm... It's smooth and soft, yet firm, so it feels good to touch.
Haru couldn't look at me, perhaps out of embarrassment.
Now, shall I tease his nipples?
I placed my fingers on the tips of Haru's pink nipples on both sides and started swirling them around.
"Heuat...!"
His reaction is good. Doesn't he touch them when he does it alone?
"Wait, Sena... There is..."
"Hm? Didn't you say I could touch them all I want?"
When I answered mischievously, Haru became restless.
I swirled my fingers on the tips of Haru's nipples, then tried rubbing them with my fingertips.
"Haeeu...."
That's a very pleasant moan to hear...
Making moans like that just makes me want to mess you up even more.
I slightly raised my fingertips and tried scratching Haru's nipples with my nails.
"Ah.. Aheuut... W.. Wait a minute..."
"Fufu... Your expression looks like it's melting♡"
I couldn't hold back anymore, so I lowered my face towards Haru's nipples and started licking them.
First, I tried lightly tapping Haru's nipples with the tip of my tongue.
Every time I touched them, Haru flinched.
"Ah... Ah...."
And then I used my tongue to lick them.
Haljjak-haljjak. Chureut...
"Ueut... Ah...!"
Now I put them in my mouth, rolled my tongue, and tried sucking on them.
Chuub... Chup... Jjyub
"Ah... Aht... Haeuk...♡"
I should suck harder.
Jjok-jjok.. Jjyuub..
"Aah... Aaaht...! Haaang..."
Haru's reactions were getting more and more intense.
"Eugeuk... It's coming out... N.. Nooo...."
Haru trembled violently for a few seconds, then soon breathed heavily.
"Haa... Haa..."
I stopped sucking and turned my head to look at Haru's lower half.
The center of his shorts was soaking wet.
I looked at Haru's face again.
It was a face that didn't know what to do.
"Haru... Did you cum just from your nipples?"
"Uuu..."
Haru couldn't answer, perhaps out of embarrassment.
"Haru is really sensitive... Hm? Are you a premature ejaculator? Cumming just from having your nipples sucked a little bit..."
I asked, putting on a mischievous expression.
"Th... That's..."
"Having my nipples teased... felt so good.."
Whoa~ What the... Saying such commendable words!!
"Did it feel that good?"
"Un..."
"Then I'll make you feel even better...♡ "
I grabbed the waistband of Haru's shorts and pulled them straight down along with his underwear.
"Wait a minute, Sena...!"
Haru's half-erect cock was revealed.
It was covered in what he had cum earlier.
"Uhm... It's dirty right now..."
"Ufut.. It's okay."
"I grabbed Haru's cock and slowly moved my hand up and down, while gently rubbing the glans with my thumb.
Jjigeok... Jjigeok
Because of what he came earlier, a squelching, erotic sound could be heard.
"Eueuut..?! Sena, I just came so it's sensitive theere..!"
"That's why I'm doing it...♡"
I whispered into Haru's ear.
Jjigeok... Jjigeok... Jjigeok
As I increased the speed a bit, Haru's eyes gradually lost focus.
"Eugeut... Eut....."
"Haru liked it here, right?"
I rubbed Haru's left nipple with one hand.
"Aaaaat..! Aaaang.... Haeeu..."
His reaction is better than before.
"N... No moore..."
No can do.
I blocked Haru's mouth with my lips and rolled my tongue aggressively.
Chuub...
Of course, while thoroughly teasing Haru's nipple with my left hand and his cock with my right hand.
Jjigeok jjigeok jjigeok jjigeok
"Eueup... Eup....!"
Haa... I'll make it so you can never think of anyone but me for the rest of your life.
Pyuut. Pyut. Byureureut.
I felt warm liquid splattering onto my stomach.
"Eup... Uup..."
Haru twitched and jerked with his eyes rolled back.
I pulled my lips away and looked at Haru.
"Haa... Haa..."
Oh my... I completely messed him up.
Tears were slightly welling up in the corners of Haru's eyes.
His lips slightly parted, sticking his tongue out while letting out heavy breaths..
This look right now is so arousing too.
For now, before it could drip onto the bed, I carefully pulled some tissues from next to me and wiped the semen that had splattered on my stomach and Haru's stomach.
"Uhm... Haru, are you okay...?"
I asked, starting to get a little worried now.
"Un..."
"Uhm... You didn't hate it?"
"It felt so good... I thought I was going to pass out..."
Phew... That's a relief.
Anyway, is Haru a masochist...?
"Uhm... Sena."
"Hm...?"
"I'm sorry... Even though I'm the guy, I just let you lead..."
Haru said with a tearful face.
This wasn't leading... I just violated him however I wanted...
Both Haru and I have been single our whole lives, but it seems there's something wrong with Haru's view on relationships.
"No, no!! Uhm... I like things like this. Me, well... leading? Haru."
"Really...? Then from now on, whenever we do erotic things... can you lead me? Actually, I... really l-like that...♡"
"U-uh... Yeah! I'll lead you a whole lot!"
It seems Haru really is a masochist. Even though he himself doesn't seem to know it.
I'll train you a whole lot from now on...♡
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