Common Sense Alteration - Professor Kim's Guest (4)

Cha Eun-ju possessed full, heavy breasts, plump buttocks, and thick thighs. She carried a very different appeal from her slim younger sister, Cha Eun-young. The only real similarity between them was their mixed heritage, which gave both women distinctly Western features and flawless white skin. Perhaps because of her glamorous figure, or simply because she was older and already a married woman, Cha Eun-ju radiated a far more seductive, mature charm. While other female students were still blooming flowers, Cha Eun-ju was a ripe fruit, heavy with sweetness and ready to be tasted.

And right now, that woman was bent over in front of me, her dress hiked up to bare her ass as she held the position. Both hands rested on the armrests of the sofa, her face flushed crimson. Her lips parted slightly as she exhaled hot, shaky breaths, and her buttocks were covered in bright red marks from the metal ruler I had been swinging with my right hand.

I stood to her left, my left hand pinning her dress in place while my right gripped the fifty-centimeter metal ruler. Originally meant for measuring or drawing straight lines, it now served as a cane for Cha Eun-ju’s ass. I looked down at her swollen, reddened cheeks, then swung the ruler toward the pale, soft flesh of her thighs.

Thwack!

“Aahng~! Haang~!”

Cha Eun-ju, who had been moaning from the strikes to her buttocks, let out a much louder cry when the ruler landed on her thighs. The pleasure must have been intense—her heels lifted off the floor and her legs trembled as every muscle tensed. Her back arched sharply, and her head dropped between her arms, pressing into the sofa cushions.

Then… huh?

Her light-pink lace panties. Transparent fluid was seeping through the most important part of the fabric. If the color hadn’t been see-through, anyone would have thought she had wet herself. The clear liquid soaked through the lace and ran down the insides of both thighs. Her body, which had been rigid with tension, suddenly went limp and began to twitch in shallow spasms. Losing strength, Cha Eun-ju sank into ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠a squatting position ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠right where she stood, hands still gripping the armrests. From behind, her lower body looked almost like a frog’s.

“It’s over. Stand up, Eun-ju.”

I spoke firmly and grabbed her hips with both hands, pulling her back to her feet. Her legs were shaking violently. Cha Eun-ju let out a soft moan.

“Haa… Professor… haa… just a moment… I’m… too sensitive right now… haa…”

“No.”

I tightened my grip on the ruler and swung it hard against her plump thigh once more.

Thwack!

“Hnnngh! Uuung! Aahng~!”

Cha Eun-ju, whom I had just helped stand, collapsed back down again. Though I couldn’t see clearly, more fluid seemed to be leaking from between her legs. Watching her, I decided it was time to move on to the main event.

“Haang… haa… haa…”

Cha Eun-ju panted on the floor. I pulled her up once more.

“Haa… Professor… wait…”

I took her hands off the armrests and, with her dress still bunched around her waist, guided her toward the bedroom on the right, where a soft bed awaited.

“Haa… haa… haa…”

Breathing heavily, she followed without any resistance. When we reached the bed, I gave her a light push and she fell forward onto it, face down, ass still exposed. While I admired her reddened buttocks and thighs, I slowly unbuckled my belt. Pulling down my pants and underwear, my fully erect cock sprang free—thick enough to remind one of a child’s forearm. Cha Eun-ju had come back today because she couldn’t forget this.

Ah! I almost forgot. I bent down and rummaged through the pocket of my lowered pants, pulling out a cylindrical object—the Itch Spray. Spraying it on any part of the body would cause intense itching, and even the slightest touch would bring overwhelming pleasure. I planned to douse Cha Eun-ju with plenty of it today.

I set the spray can on the wide bed and stripped off my sweatpants, underwear, and T-shirt completely. Now naked, I climbed onto the bed behind the prone Cha Eun-ju. I tugged her pink panties down, knelt between her legs, and settled my weight on her thighs. My ass rested on her soft thighs while my massive cock lay nestled between her plump cheeks. I unzipped her dress and peeled it upward. By then Cha Eun-ju had regained some awareness and helped remove her own clothes. While I tossed the dress into a corner, she reached behind her back and unhooked her bra without being told, preparing herself for what was coming. She even started to remove her earrings and necklace, but I stopped her. I liked the idea of her wearing only jewelry while we fucked.

I snatched the bra from her hands and threw it after the dress. When I looked down again, her ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠smooth white back filled my vision.

Wow…

Her bare back was flawless. From this angle, the sides of her breasts were visible, crushed against the bed and spilling outward, proudly displaying their size.

Wow… No Korean woman could have breasts that big. Oh, right—she’s not fully Korean.

Cha Eun-ju was mixed with Western blood. Her pale skin, exotic features, and enormous breasts reminded me of that fact. Unable to resist, I grabbed her waist and flipped her over. Her full white breasts, slim waist, and beautifully curved hips came into view. Between her spread thighs, her pussy glistened, already wet and waiting.

Hoo… nice…

It was the kind of body that would make any man smile. It was hard to believe she was a married woman who had already given birth. I spread her legs wider, positioning myself between them on my knees. Now she lay on her back, thighs resting on mine, her most intimate place completely exposed. Yet Cha Eun-ju showed no shame. She met my gaze, her eyes silently begging me to start.

I picked up the cylindrical spray can from the corner of the bed and aimed the nozzle at her pussy.

Psst. Psst.

Better make it plenty…

Psst. Psst.

Cha Eun-ju had returned today largely because of this spray. There was no denying it.

Psst. Psst.

Just like the first time we had sex, I coated her pussy generously.

Psst. Psst.

While spraying, my eyes traveled upward—past her slim waist to her massive, heavy breasts. The soft, white mounds were slightly flattened by gravity, making them look even fuller. As if entranced, my hand moved the can toward her chest and sprayed both breasts in turn.

Psst. Psst. Psst.

If I sprayed this much… even just squeezing her breasts would drive her crazy, right?

Psst. Psst.

I couldn’t calculate the exact amount or intensity, but I figured more was better. The Itch Spray was always a useful item.

Psst. Psst.

“Pro… Professor? It feels… itchy…”

Cha Eun-ju spoke with a deeply flushed face. Maybe I had taken too long without penetrating her, or perhaps the spray on her pussy was already working.

Psst. Psst.

Then a notification window appeared in the corner of my vision.

Time really flies. Good times always pass in the blink of an eye. I tossed the spray can onto the bed and turned my gaze back to Cha Eun-ju. Her brown eyes, slightly glazed as if tipsy, looked up at me. Completely naked except for her necklace and earrings, she lay waiting. The gold chain emphasized her slender white neck and delicate collarbones. Below them stretched her full breasts, slim waist, plump hips, and thick thighs—a vast plain of pale skin. Her body seemed to glow softly, like fresh snow under moonlight on a dark night.

Hoo…

I slowly brought my cock to her entrance and pushed the thick head inside.

Schlick.

“Hnnng… haaa~.”

Her mouth opened on its own, releasing a seductive moan. Her white body trembled. I began to move my hips slowly back and forth while grabbing both of her breasts with my hands.

Schlick. Schlick. Schlick. Schlick.

“Haang! Aahng~! Haa~”

Her enormous breasts overflowed my palms. Her nipples were stiff and hard. When I squeezed harder, the soft white flesh bulged between my fingers. Whether from the pleasure of the rough grip or the spray I had applied earlier, Cha Eun-ju let out even louder, lewder moans.

Schlick. Schlick. Schlick. Schlick.

“Haang! Haaat! Uuung!”

Those primal sounds suited a female animal in heat more than a human. Every time I thrust into her, her body shook violently. Soon I released her breasts, planted my hands on the bed, and focused on the rhythm of my hips.

Thrust. Thrust. Thrust. Thrust. Thrust.

“Aahng~ Hnn! Aang~”

The wet sound of flesh slapping together filled the room. Her breasts bounced softly with each movement.

Haa…

The sight was breathtaking. Her pale neck, collarbones, breasts, waist, and hips formed a perfect line. Every time I drove into her, her white thighs trembled on either side ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠of me. Her body looked like an untouched snowfield—pure white, vast, and flawless. That beautiful landscape lay right before my eyes.

Thrust. Thrust. Thrust. Thrust. Thrust.

“Haaang~ Aahng~ Haa~”

I leaned down and took one of her breasts into my mouth, biting lightly.

Nom.

“Haaang! Uuung~!”

Perhaps I bit a little harder than intended. A sharp moan escaped her. I flicked my tongue over her stiff nipple, licking around the sensitive peak.

“Puh… ha…”

When I released her breast, a clear bite mark remained on the once-pristine white skin—like a footprint left on fresh snow.