My Taboo Academy

Having my own sister choke on my cock first thing in the morning short-circuited every remaining scrap of reason.

"Ah... umph...?"

She couldn’t pull away even if she wanted to.

Yet she looked up at me with soft, trusting eyes that basically said "please use me".

I started rocking my hips, shallow thrusts that brushed the back of her throat.

"Guh... ugh... ackk"

Too much for a first time. I eased off immediately.

The second I re-activated Fleshlight Touch, her eyes went hazy again.

"Ah... mmh... nn..."

Was it really okay to get my little sister this wet before breakfast?

I didn’t stop the skill.

The more I treated her like a Fleshlight, the better her mouth felt.

She kept her lips sealed even when I almost pulled free, chasing the head with wet, eager tongue strokes.

"Yunaa!!"

I pushed her down and came without warning.

Brrrrrrr—!

"Hmmph?!"

Her eyes flew wide. Cheeks ballooned as the thick load filled her mouth. Watching her struggle to contain it was somehow both ridiculous and insanely hot.

Brrr... brrr... brr!

"Don’t spill any."

"Mmmph... gulp... hnn... gulp... oh..."

She fought the gag reflex and did her best. I kept stroking her hair, praising her while the last pulses emptied into her mouth.

"Gulp... gulp..."

Even so, a little leaked from the corner of her lips. Her effort was so earnest it made my chest tight.

This was nothing like the empty release of the night before. The wet heat of her tongue, the way she looked up at me while swallowing, everything about it felt intimate in a way that went far beyond simple relief.

"Hah... ehehe..."

Yuna pulled off with a wet sound and grinned like she’d just been given the best present in the world.

"We should get ready for school."

If we kept going we were going to be late again.

"But... there’s still a little time..."

This time she clung to my leg like a child asking for allowance.

"Yuna?"

"..."

Still kneeling, she slowly lifted the hem of her skirt.

Her gray panties were visibly soaked through.

"If you like me more than that... is it okay to go further?"

She hooked a finger in the waistband and pulled one side down.

I understood instantly.

Sex with my sister.

Even inside Lustbound that line still felt heavy.

"We have condoms, but..."

If I rejected her now she would be hurt.

After letting her suck me off, ignoring the wet, pleading pussy right in front of me felt like a special kind of cruelty.

"Ugh... Ren..."

She kept the panties half-lowered and looked up at me with that soft, needy expression.

"You made me this wet... I’m so restless I can’t think..."

I had overdone Fleshlight Touch.

How was I supposed to fix this without actually sleeping with her?

"Come here."

I sat on the edge of the bed, spread my legs, and pulled her across my lap face-down.

**Slap!**

My palm cracked against her firm ass.

"Hyaah! What was that for?!"

She kicked her legs. I pinned her hips and delivered another sharp spank.

"Haha."

Yuna clenched hard.

"I have other ways to discipline a naughty girl. You need to calm down."

"I’m not a kid anymore! This is so embarrassing!!"

*Slap!*

"Ahhh!!"

"You couldn’t even swallow everything, and now you’re asking for sex?"

"..."

She puffed one cheek out, genuinely sulking this time.

"Your load was way too much. The books never said it would be like that."

"So now it’s my fault?"

**Slap!**

"Ahh!"

Her face turned scarlet. She covered it with both hands while still lying across my thighs, an adult woman in the most humiliating position possible.

"What did you do wrong?"

"I... I’m sorry... I was wrong..."

"Specifically."

"I didn’t take care of your cock properly with my mouth..."

She squirmed, hips shifting.

"And I’m sorry for asking you to use my pussy so soon..."

Somehow trying to avoid full sex had landed us in something even filthier.

I kept spanking her, each impact making her pussy twitch.

She seems to be into it more than I thought...

"Ah... nn...!"

While her ass glowed red I switched to gentle massage, soothing the sting.

"I don’t sleep with inexperienced girls. Understand?"

"Y-yes... Next time I’ll swallow every drop... I’ll become a proper lady who can satisfy you..."

*Smack. Smack. Smack.*

"Yes... I made a mistake..."

I spread her cheeks and slipped two fingers into her dripping entrance.

"Ahhhh...ahhhh...!"

"Open your legs."

Startled but obedient, she parted her thighs.

I pushed deeper, curling against the soft, fluttering walls.

"I’ll take care of you a little."

"Ah... your fingers..."

Skirt flipped up, panties pulled lower, I worked my hand between her soft cheeks and stirred her tight, twitching hole.

Squish... swirl... squish...

I kept stroking her hair while my fingers moved.

"Ah... thank you"

"What are you thanking me for?"

"For... taking care of your inexperienced pussy..."

"Because I’m your brother."

She writhed across my lap, completely lost to the sensation. I kept thrusting my fingers in a steady, relentless rhythm.

Squish... squish... squish!!

"Ah..no... brother... brother...!"

"You squirt this much just from fingers?"

"It’s embarrassing..."

I twisted and rubbed the exact spot that made her hips jerk.

"Ah... ah... ah...!"

Yuna rolled her hips against my hand, chasing every stroke.

I pinned her pelvis down and focused on that one sensitive place without mercy.

Squish-squish-squish-squish!

"Oh... I’m sorry... I was teasing you... I’m so sorry..."

In that moment the power balance was unmistakable. She had started this, but I was the one in complete control.

I didn’t stop.

"Ah! It’s so good... your thick fingers... haa... I love it..."

"You like coming in your brother’s arms?"

She nodded frantically, face still buried in her hands.

Hiding didn’t help. Her unprotected pussy kept gushing in clear, rhythmic pulses, openly confessing how much she loved it.

*Squelch... squelch... squelch*

The sheets were going to need washing.

"Please forgive me..! Next time I’ll do everything properly... I’ll become a refined lady’s pussy... please forgive this inexperienced one..."

*Poke... poke... poke... poke*

"Ah ahh... Oppa... Oppa"

I sped up, driving her straight into a full-body orgasm.

Yuna came hard and long, gasping for air, buttocks still trembling even after I finally withdrew my fingers. She seemed to be savoring the aftershocks.

’Phew.’

Perfect timing.

"Time for school, Yuna."

**Smack.**

"Ah!"

One last light spank on her glowing ass to bring her back to reality.

Third morning in Lustbound.

Same as every morning so far, I started the day with a little fun.

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