The Plan (5)
Chatting lightly, the two sisters stepped out of the skin-care salon.
So-young and So-jin.
Their bodies felt noticeably lighter.
They stopped at a nearby café, settling into a corner seat and sipping their coffee.
The older sister studied her younger sister carefully—So-jin’s energy was running unusually high.
“You look like you’re in great shape today.”
“Me?”
“Yeah. You seem different from usual.”
“Do I…?”
“Something happened, didn’t it?”
She’d been curious from the start. The aesthetician had been hovering nearby earlier, so she hadn’t asked then. But So-jin’s whole expression was different—brighter.
“Well… lately my calves and thighs have been swelling up after work, but today they feel fine. Maybe that’s it.”
“Let me see.”
Smooth, elegant legs. So-young took decent care of her own, but they couldn’t hold a candle to her sister’s. Thighs that looked slender yet still carried just enough flesh—the kind of body men went crazy for. Even her husband mentioned it sometimes.
“I don’t really see it…”
“That’s because you never look carefully. The swelling’s definitely gone down.”
“Nothing else happened?”
“Well… last night I slept with Hyun-woo for the first time in a while. Maybe that helped too?”
“With your fully grown son?”
“Yeah. Why are you reacting like that? Like you just saw something you shouldn’t have.”
“No… he’s a man now, you know.”
“He’s my child before he’s a man. You’d happily let Min-su rub your calves if he offered.”
A faint chill ran through So-jin. She shook her head.
Her sister hadn’t noticed, but she had seen it—when Hyun-woo’s door opened, that hunched posture and flushed face. He’d been doing something. She could roughly guess. At that age a boy’s lust was at its peak.
Masturbation.
While his mother and aunt were talking in the living room.
Her sister had zero sense of caution. She could brush it off as nothing, but it wouldn’t hurt to make things clear.
“That’s true, but… Hyun-woo’s twenty now. It’s time you started being careful.”
“Careful how…?”
“When you slept with him, were you wearing a slip?”
“Yeah. I thought it might be a bit much and was going to change, but he said it looked pretty, so I just left it on.”
“Hyun-woo is a man.”
“I know that… Why do you keep emphasizing it out of nowhere?”
“Because you two could make an accidental mistake without meaning to… and then things would get awkward. I’m just saying be careful ahead of time.”
“Sis… are you seriously suggesting Hyun-woo might try something with me?”
“Not exactly that… You just admitted it yourself—he’s a man.”
“He’s also my child.”
Hyun-woo’s sudden change in attitude. If he’d been consistent it might have been one thing, but it felt a little suspicious. Just a few days ago her sister had come to her for advice about her son. So-jin was raising a son of her own—a blunt, quiet kid. The idea of him sleeping beside her and rubbing her calves was unimaginable. And she’d indirectly witnessed the masturbation scene too.
That one line that had needled her sister yesterday: Hyun-woo looks like he’d fuck really well.
Her husband was like that. Even now he still satisfied her with that vigorous sex drive. She’d caught a glimpse of it once.
There was a reason she was saying all this.
She and her husband had done a lot of swinging and chodaenam play. Group sex, gangbangs—they’d experienced it all. Once the kids hit puberty they’d cut it off completely, just in case any videos ever leaked. They’d stopped entirely.
They’d laid bare each other’s sexual tendencies, and once she’d heard something meaningful from him.
A mother complex.
Before meeting her, her husband had harbored desires for his own mother. Sex. Reality had blocked him from ever acting on it, but…
The way his cock had been harder than ever. An incredible experience. Calling out “Mom” over and over while he slammed his hips into her without rest. Coming inside. Climax.
Hyun-woo’s flushed face had overlapped with that memory.
She sincerely hoped it was just needless worry.
“You’re right. He’s your child… Even when Hyun-woo turns thirty ten years from now, he’ll still look like a baby to you.”
“Yeah, I think so… When I woke up and looked at his face, it was exactly the same as before.”
“You really love Hyun-woo, don’t you.”
“Of course… After everything I went through raising him… After that bastard left me, Hyun-woo was all I could see.”
“Sorry for saying unnecessary things. But I heard some things myself, so don’t take it the wrong way.”
“Sis, this is weird. Why do you keep thinking only in that direction?”
She felt she ought to say it. She’d planned to let it go, but the atmosphere had grown serious. For her sister’s sake.
“Yesterday after we chatted, I went to the café… I knocked because I wanted to see Hyun-woo’s face.”
“Yeah.”
“You didn’t see it, but his expression and posture were strange… You know what I mean?”
“Are you talking about… masturbation?”
“Yeah. I didn’t catch him in the act, but I’m sure of it… He was doing it while his mom and aunt were right there in the living room.”
“That’s just… what boys his age do.”
“You’re right… What I’m trying to say is that his urges are rising, so be careful.”
“…Okay, Sis.”
“Whew… You’re not even getting mad and you got it right away?”
“When I put the slip on I did wonder if it was too sexy… But he said it was pretty, so I just slept in it.”
“Hehe… I don’t know for sure, but Hyun-woo must’ve had a really hard time.”
“Pfft… I’m just an old ajumma. No way.”
This much was enough. She’d gotten the message. Hyun-woo wouldn’t dare think of touching his mother. Just like her husband, let it end as a childhood fantasy.
“Have you heard the rumors?”
“What rumors?”
“Moms these days are wild… You and I basically raised our kids free-range, so we wouldn’t know.”
“What are you trying to say?”
“Moms who help their sons masturbate.”
“Oh, is that all… That’s just an urban legend… No one’s ever actually seen it… It’s ridiculous.”
“I think so too… But I believe it’s something that could easily happen.”
“Why?”
“Come on… Do you think you’re the only mom who loves her son that much? When affection goes too far, people make mistakes.”
“Helping him release sexual tension? As his mother?”
“Yeah. If it ended there it’d be fine, but moms these days take such good care of themselves… Their sons might get turned on.”
“No way.”
“And then in an instant an accident happens… Crossing the line is hard, but once you’ve done it once, the next time is easy.”
“Stop talking about it. It’s not even funny, it’s gross.”
“Okay. I only brought it up to warn you… You seem to get it, so let’s drop the subject here.”
Had she gone too far?
Hyun-woo was one thing, but her sister clearly had no such intentions. Right—it wasn’t even her business. And Min-su would never develop feelings like that either.
She felt oddly irritated.
“How are things with Brother-in-law these days?”
“What… Ah, the swinging?”
“You always used to come back and spill all the stories. For years now there’s been nothing.”
“The kids notice things… And we don’t have the stamina to play like we used to.”
“That’s not like you, Sis.”
“You have no idea how fast kids are these days. Even elementary schoolers know everything.”
“Ah… Is it because of leaks?”
“Yeah. Most of the places are closed off so it’s not a huge worry, but those videos floated around for a while.”
“Yeah, you should be careful… You too, Sis.”
“Hehe… Worry about yourself.”
Her sister was the only person she could talk about these things with. She always listened well. Sometimes she even got excited. Since So-young never met any men, So-jin had even gifted her a sex toy once. She didn’t know if she still used it.
They kept the conversation going. This time spent chatting with her sister was enjoyable.
Hyun-woo couldn’t tear his eyes from the monitor.
He was absorbed in a massage video. The focus was on loosening tight muscles, but it also pointed out erogenous zones. He burned every detail into his mind.
The recipient would be his mother.
He had to advance slowly, one step at a time, so she wouldn’t raise her guard.
He pulled the bulging something free from his pants. He overlaid the male masseur on the screen with his own image. The woman lying face-down in a disposable panty was his mother. Hands digging deep. A body that jerked hard. It was stimulating.
His stroking sped up. The liquid that had been building surged out in thick spurts. He cleaned up thoroughly. There was no telling when his mother might walk in.
He stepped out into the living room.
The front door opened. It was his mother. He went straight to greet her.
“You’re home early.”
“Yeah. I went to the skin-care salon with Sis, then we talked a bit at a café.”
“Tired?”
“Hehe… Because you rubbed my calves, my condition was good all day.”
“That’s great.”
“You didn’t forget the promise from yesterday, right?”
“Yeah. Should I get ready?”
“It’ll take me a while to wash up and come out… Just rest on the sofa.”
He followed behind her. Blouse and slacks. An ordinary outfit, but her figure made it stand out. There wasn’t really anything to prepare. Just laying out one soft blanket would do.
A little disappointing. If he’d known it would be like this, he would have bought massage gel ahead of time. Well, he’d already ordered some.
He sat on the sofa and waited. It took quite a while. He scrolled through his mother’s SNS. A confident pose of her wearing sunglasses. A bikini. A photo from three years ago was pinned as the main image—one she had chosen herself, with the beach in the background.
“Who’s that? She’s insanely pretty.”
“Huh? You startled me… You scared me, Mom.”
She had already come up beside him without him noticing. A plain T-shirt and shorts. Even though she knew it was her own photo, she reacted shamelessly.
“Right? Who could it be? A woman like that, I think I’d try asking her out.”
“Pfft, she went to America a long time ago… To get that body again now she’d have to starve for a whole month.”
“Really? To me she looks exactly the same as then…”
“I’ve put on a little weight… three kilos.”
“You look way better now.”
“This kid… buttering me up again… What are you planning by flirting with your mom?”
“Even when I compliment you I get scolded… Should I stop?”
“Do it often.”
His mother played along with the light joke. Everything was proceeding according to plan. The outfit was a slight letdown, though. The leggings she wore for jogging would have been perfect.
His mother lay face-down on the blanket spread across the living-room floor. She stretched her legs straight back, showing off those smooth, elegant lines. He looked down and admired them. She looked far better than the mother in that three-year-old bikini photo.
He settled into a comfortable position.
“Shall I start?”
“Yeah. Don’t press too hard.”
Maybe it was the nerves. His hands trembled. He reached out. He pressed firmly into the plump curve of her calf. Her leg twitched.
“Mmm…”
“How is it?”
“Good… It feels refreshing…”
“Got it. This much pressure should be fine.”
Soft skin. It imprinted itself onto her son’s palm. And she called this “puffy”? His mother really was dramatic.
Her shorts rode up a little. Her thighs came into full, bare view. He swallowed hard. So white. He wanted to touch them. What would they feel like?
“Mmm… haah… mmm… haah…”
“Does it hurt?”
“A little… but it feels good… Keep going.”
“Okay. Tell me right away if it hurts… I’m still clumsy so I might not control the strength well.”
“It really feels wonderful…”
He felt proud. The plan had started so he could hold his mother, but that wasn’t the only purpose. He wanted to know everything about her. He loved her. A true feeling he still couldn’t reveal.
Pouring affection into every motion, he kneaded his mother’s calves. Her legs twitched. He succeeded in reaching all the way to the fold behind her knee. He wanted to drag his hands higher. Those white thighs.
“Hyun-woo… my thighs a little too…”
Had they connected somehow? The very moment he thought he wanted to touch her thighs, the words slipped from his mother’s lips.
He steadied his breathing. His hands were still trembling. They moved toward his mother’s pure-white thighs. Contact. He cupped his palm. A thigh that wouldn’t fit in one hand. The elasticity was perfect. So incredibly soft.
He sank into his mother.