One Erection Leads to Another
“I get it now, right? I’m that kind of worthless trash. So…….”
As I gave my sister my saddest, most self-loathing face, she looked straight at me.
“Tell me more details.”
“What?”
I asked for a more precise explanation.
“Did it just hit all of a sudden? Or was it something you kept doing gradually until it finally happened?”
“W-what? Hey! Is that really important right now?!”
“Completely important. It’s tied to my memories. If I hear everything, my memory might come back.”
“That’s…… um, that’s…… so…….”
Even though she was flustered, she couldn’t deny my words. She seemed to agree with me.
“Several years ago, we were showering together like always after washing off the sweat. And you…….”
“I did?”
“Got hard.”
“Ah…….”
It was actually true, and it made me blush. Back when I was a middle schooler. My sister would slap my bare backside and chase me out of the bathroom afterward, and we stopped bathing together after that. It was such a sad story.
But this world’s sister said,
“So…… I could tell you were struggling, and I ended up helping you out with my hand.”
‘Whoa.’
She didn’t hit me away or chase me out. Instead, she took care of me.
This world’s me wants to change everything. I already have changed.
“Really?”
“Yeah. I’ve watched a lot of porn, so I know a bit. You were standing there, completely confused and panicking while your erection strained against your pants…… and it was all just excuses anyway.”
Even as she said it, guilt was written all over her face and she wouldn’t meet my eyes. Seeing my sister be this self-critical was a fresh experience for me.
“Did you just use your hand?”
That was one thing, but I was dying to know the rest. This world’s me had gone way further with my sister than I ever imagined.
“Y-yeah. At first I only used my hand, but then…… I used my mouth too…….”
“Wow…….”
The strict, uptight sister of this world had actually put my erection in her mouth and sucked it until I came. Just thinking about it made my heart race with pure amazement.
“I knew it!! I was such a crazy person!! How could I take my own brother’s erection into my mouth and suck it……!! I regret it too!!”
“No. Well, maybe that’s not so bad. Using your mouth is probably faster and more pleasurable. I think it was a good decision.”
“Ha, haaaa…….”
I told my self-hating sister it wasn’t like that at all and comforted her. She looked confused, like she wasn’t sure whether to get angry or feel grateful.
“Anyway, that’s what happened. After that, for about a week…… every single day I helped you with your ejaculation. With my hand and my mouth.”
Every day my sister would stroke and suck my cock. It was a whole week.
This world’s me must have had one of the best weeks of my life with my sister.
“So, in the end, what happened?”
I sat on the chair, crossed my legs, and hid my almost fully hard cock with them as I asked. My sister, looking thirsty, gulped down the water in her cup.
“……Even though it’s all just excuses, I’m still a woman, right? So the more I did it, the hotter my body got…… because your cock is big and awesome. The precum is so thick and sticky…… your pussy felt like it was throbbing.”
I never thought that in my entire life I would hear my sister praise my cock and precum. I ended up getting fully hard.
“So I couldn’t hold back anymore and pinned you down and climbed on top…… trying to slide my erection into my pussy, I saw it…….”
My sister buried her face in both hands, like even the memory hurt.
“Seeing you lying on the bed, almost crying while telling me not to do it…….”
“Whoa.”
“What whoa? I was completely shocked!!”
What the hell, dude? I was genuinely disappointed in this world’s me. From what I heard, I probably came, but I’d never want to see tears come out of it.
“Anyway, that’s when I realized I was forcing you.”
“Forcing me?”
“Yeah. It wasn’t for your sake. I just wanted to do something lewd and touch and suck your cock, so I kept harassing you against your will…….”
My sister clutched her shoulders with her nails, looking disgusted. When I reached for her hand, she flinched and pulled away.
“I did something that was no different from those guys who harassed you. I was swept away by lust.”
Then she continued in a trembling voice that sounded like she might cry at any second.
“When I realized what I’d done, I hated myself so much…… I couldn’t stand being near you anymore, so I left home. I’ve been living off the bare minimum living expenses I send you since then.”
“……I see.”
If something like that really happened, it made sense we never contacted each other. Even without the responsibility and sense of justice my sister had, I probably wouldn’t have stayed in touch either.
“Now that I remember?”
“No, I don’t remember anything.”
“……That’s actually a blessing. Because remembering probably wouldn’t be a good thing.”
My sister gave a bitter smile.
“Now you know how much trash I am. Pretending none of that ever happened…… I can’t do that. I’ve done something unforgivable to you…….”
As she rattled off some tired, pretentious excuse,
“Things like that happen to people all the time.”
I cut her off bluntly.
“……What?”
Honestly, it was probably a good thing for me since I didn’t actually experience it.
“Fundamentally, I was the one who got hard with you in the first place. That’s my fault, isn’t it? If I hadn’t gotten hard, nothing would have happened.”
“That’s…… because you have a body that gets hard easily compared to others…….”
“Whether it’s a body or not, the one who got hard was me.”
Fundamentally, it was bad for me that I got hard.
If I had known, I would have told my sister from the start not to bathe together. The sister who had slapped my backside when I was younger gave that sharp answer.
“You’re still my sister, so you tried to help me because I was getting hard, and then you got excited and made a mistake. Calling me trash or whatever is too much.”
“Ha, but…… you were almost crying at me, saying not to do it. You gave me an irreversible wound.”
“Since I don’t remember, I don’t know. Whether it’s irreversible or not, it just became something that never happened. Maybe it was scary in the beginning. Maybe I was just scared instead of hating it?”
“…….”
My sister looked lost for words, like she couldn’t believe the person involved would say all that.
“But I did something…….”
“Even if it was my sister who did it, we never actually had sex, right? It was attempted sex. And judging from how you look now, you must have reflected on it a lot in the meantime.”
Even though she was still self-hating and trying to call herself bad, I cut her off cleanly.
“So I’m fine. I forgive you.”
I forgave her outright.
Just like how my sister had forgiven my foolish mistakes until now.
“……You can forgive me that easily?”
“I don’t want to stay awkward with you because of something I don’t remember. Let’s start over. We’re still the only family left in this world.”
“…….”
My sister stared at me with a face that looked like she was torn between joy and sadness.
“……Yeah.”
She nodded deeply. A drop of water fell from the floor with a little *drip, drip.*
“Huh, are you crying?”
“What? What? Women can’t cry?!”
I asked in surprise, and my sister burst into tears and yelled. Then she wiped them with the back of her hand, took a deep breath, and sighed.
“Haah…… It feels so…… empty. I’ve been carrying this guilt for my whole life, but it ended up like this.”
And she laughed like it was absurd and relieving.
“My sister is sometimes too strangely serious. It’s a problem.”
“You’re too laid-back about everything in life.”
My sister and I looked at each other and laughed. It felt warm, like we had finally returned to the familiar sibling relationship we once had.
“Huu…… So.”
Just as I was thinking that, the one thing I was terrified would happen—
“Who was the one you sent that erection photo to? Tell me honestly.”
The tears stopped, and my sister’s sharp eyes returned as she interrogated me.
“Ah.”
The trouble I had been forgetting had finally come for me.
“T-that’s private…… As I said, I’m not a bad person…….”
If I told her I had sent a nude photo of myself to my favorite streamer and met up with her for sex in a room cafe, I would get at least three hours of yelling. I could never tell her.
“……You, who was crying and begging not to be touched when I pinned you down, now shamelessly sending dick pics to someone else? That’s not fair.”
My sister pouted and poked my chest hard with her fingers. It hurt.
“Because I don’t remember what happened back then. Right now, I don’t really hate lewd stuff.”
“Hey. No matter how much you don’t hate it, you have to cherish your virginity!!”
This world’s sister was still an amazing sister. It was a little annoying…….
*
After the story more or less ended, my sister said she would shower before going home because she was sweaty and sticky. I was glad I had cleaned everything up properly since Eunji was coming over recently.
‘That aside…… even with my sister, I still can’t quite accept it.’
I looked down at my unused cock, which was still half-hard, and thought.
During the story I had imagined getting fully hard, but after that, even though my sister was basically wearing only a swimsuit, it never led to erection. I thought she was pretty, but it felt awkward.
‘How well this world’s me gets hard.’
No matter how much, how could I get hard thinking about that manly—wait, manly woman—sister? Had I been stacking up all this tension? What a pathetic guy who couldn’t even jerk off by himself.
“Huu, feels good.”
Just as I was thinking that, my sister came out of the bathroom.
‘Whoa.’
She had only panties on, and she was rubbing her hair dry with a towel.
“Hey. Where’s the hairdryer? You don’t usually dry your hair.”
My sister’s chest, the size right in the middle between Eunji and Boyang, was shockingly sunken nipples.
Wide, thick areolas with nipples barely visible in the center gave off an intense, hard-to-describe stimulation—blood rushed straight to the area below.
‘……Ah.’
In an instant I understood why this world’s me had gotten hard.
‘Shit…….’
“Where’s the hairdryer…… Huh?”
My sister, who had gone back to asking where the hairdryer was, noticed my bulge in my pants.
“Hey, hey you crazy bastard!! What are you getting hard for?!”
“Why show me that all of a sudden!! What the hell is that sunken nipple?! It’s so lewd!!”
“W-what?! Who likes sunken nipples?! I already have a complex about it! I don’t like it either!!”
We bantered for a while, and I pulled out the unused hairdryer I had been hiding and gave it to her. I turned my face away in embarrassment, but my erection didn’t soften no matter how much I tried to think about it.
“What a joke. You were crying in fear back then, and now you’re getting hard again…… It’s unbelievable.”
“……Even if the memory is gone, I’m still the same person. What can I do?”
“Is that so…… I really…… got hard thinking about my own sister…… Ha, haah…….”
Her face was flushed and she looked stunned, but she still wasn’t trying to cover her chest. Thanks to that, I couldn’t stop getting hard either.
“……Now you don’t help me with my ejaculation or anything?”
I asked my sister that, glancing back at all the things that had happened in this world, but she snapped immediately.
“Are you crazy?! Ask your girlfriend to help you!!”
As expected, she got angry and said it straight. It seemed that kind of development was now impossible. For her it was probably almost as traumatic as anything, so it made sense. I had been too careless.
“I’m not going to help. I don’t want to repeat mistakes…….”
But even as she said that, her eyes kept drifting to my bulging pants and wouldn’t leave.
“……Cunnilingus.”
After a long awkward silence,
“Huh?”
“I can do cunnilingus. As compensation for making you hard. I won’t touch you with my hands, though…….”
While I was giving up, my sister suggested she would do cunnilingus first.
After the story wrapped up, my sister announced she was going to shower before leaving because she was sweaty and sticky, and she borrowed the bathroom. I was relieved I had cleaned everything properly since Eunji was coming over soon.
‘That aside…… even with my sister, I still can’t accept it fully.’
I glanced down at my half-hard cock and thought.
During the story I had imagined getting fully hard, but after that, even though my sister was basically only wearing panties, it never led to an erection. I thought she was pretty, but it felt awkward.
‘How well this world’s me gets hard.’
No matter what, how could I get hard thinking about that manly—wait, manly woman—sister? Had I been stacking up all this tension? What a pathetic guy who couldn’t even jerk off by himself.
“Huu, feels good.”
Just as I was thinking that, my sister came out of the bathroom.
‘Whoa.’
She had only panties on, and she was rubbing her hair dry with a towel.
“Hey. Where’s the hairdryer? You don’t usually dry your hair.”
My sister’s chest, the size right in the middle between Eunji and Boyang, was shockingly sunken nipples.
Wide, thick areolas with nipples barely visible in the center gave off an intense, hard-to-describe stimulation—blood rushed straight to the area below.
‘……Ah.’
In an instant I understood why this world’s me had gotten hard.
‘Shit…….’
“Where’s the hairdryer…… Huh?”
My sister, who had gone back to asking where the hairdryer was, noticed my bulge in my pants.
“Hey, hey you crazy bastard!! What are you getting hard for?!”
“Why show me that all of a sudden!! What the hell is that sunken nipple?! It’s so lewd!!”
“W-what?! Who likes sunken nipples?! I already have a complex about it! I don’t like it either!!”
We bantered for a while, and I pulled out the unused hairdryer I had been hiding and gave it to her. I turned my face away in embarrassment, but my erection didn’t soften no matter how much I tried to think about it.
“What a joke. You were crying in fear back then, and now you’re getting hard again…… It’s unbelievable.”
“……Even if the memory is gone, I’m still the same person. What can I do?”
“Is that so…… I really…… got hard thinking about my own sister…… Ha, haah…….”
Her face was flushed and she looked stunned, but she still wasn’t trying to cover her chest. Thanks to that, I couldn’t stop getting hard either.
“……Now you don’t help me with my ejaculation or anything?”
I asked my sister that, glancing back at all the things that had happened in this world, but she snapped immediately.
“Are you crazy?! Ask your girlfriend to help you!!”
As expected, she got angry and said it straight. It seemed that kind of development was now impossible. For her it was probably almost as traumatic as anything, so it made sense. I had been too careless.
“I’m not going to help. I don’t want to repeat mistakes…….”
But even as she said that, her eyes kept drifting to my bulging pants and wouldn’t leave.
“……Cunnilingus.”
After a long awkward silence,
“Huh?”
“I can do cunnilingus. As compensation for making you hard. I won’t touch you with my hands, though…….”
While I was giving up, my sister suggested she would do cunnilingus first.