Before I could even process what was happening, Erico leaned down and pressed her massive breasts firmly against my chest.
The sensation was overwhelming.
They were incredibly soft, heavy, and warm. I could clearly feel that she wasn't wearing a bra underneath her school blouse. Her big, plush tits squished and spread out against me, the thin fabric doing almost nothing to hide how full and supple they were. Her stiff nipples poked noticeably into my chest as she ground her body down on mine.
Then she lowered her head.
First, she kissed my neck — right on the spot where the crimson mark was hidden. Her lips were hot and wet. She sucked hard on my skin, then dragged her tongue slowly across the sensitive area, sending sharp jolts of pleasure through my body. A low moan escaped her throat as she kissed and licked my neck greedily.
Before I could catch my breath, her mouth moved up and crashed onto my lips.
This wasn't a gentle kiss.
Erico kissed me with raw, devouring hunger. Her soft, full lips pressed hard against mine, almost bruising in their intensity. She immediately forced her tongue into my mouth, aggressively tangling it with mine. The kiss was wet, messy, and desperate — thick strings of saliva mixing between us as she sucked on my tongue and lips. She moaned loudly into my mouth, the sound vibrating through me while her tongue explored every corner, licking and swirling with shameless lust.
I don't know what came over me, but instead of pushing her away, I gave in.
My hands moved on their own. I reached up and grabbed her huge breasts with both hands, squeezing them roughly through her blouse. They were even softer than I imagined — so heavy and malleable that my fingers sank deep into the warm, pillowy flesh. I kneaded and groped them greedily, feeling their incredible weight and softness as I squeezed harder. Her fat tits overflowed between my fingers. I could feel her erect nipples rubbing against my palms every time I massaged and pinched them.
The more I squeezed her breasts, the more aggressively she kissed me. Her hips started grinding slowly against my crotch, rubbing her pussy against the growing bulge in my pants while her tongue continued to devour my mouth, saliva dripping down the side of my chin.
She pulled back just enough to breathe, a thin string of saliva still connecting our lips, and whispered hotly against my mouth:
"Mmm… you're surprisingly bold…"
Her eyes were burning with pure lust.
Just as things were getting dangerously intense, the school bell suddenly rang loud and clear, signaling the end of lunch break.
The sound jolted me back to reality.
My heart slammed against my ribs. Panic surged through me. I instantly grabbed Erico by her shoulders and pushed her off me with more force than I intended. Without saying a single word, I scrambled to my feet, grabbed my bentō box, and ran toward the stairs like my life depended on it. My face was burning, my lips were swollen from her aggressive kiss, and my cock was still painfully hard inside my pants.
I didn't look back even once.
A few minutes after I returned to the classroom and sat down at my usual seat in the back, Erico walked in calmly. She looked completely normal — smiling and chatting with her friends like nothing had happened on the rooftop just minutes ago. Her uniform was perfectly straight, her hair neat, as if she hadn't just been grinding on top of me and shoving her tongue down my throat.
It made me feel even more unsettled.
During class, while the teacher was writing on the board with his back turned, something small and hard suddenly hit the side of my head.
A crumpled paper ball.
I quickly picked it up from the floor and unfolded it under my desk. The handwriting was neat and confident:
"I will be waiting for you after school behind the gym. Don't even think about running away.
If you don't show up… I'll post the photo I took of us kissing on the rooftop online for everyone to see."
My blood ran cold.
A photo? When did she take a photo?
I slowly turned my head and glanced toward her seat. Erico was looking straight at me with a mischievous, dangerous smile on her lips. Her eyes sparkled with clear amusement and something much darker — pure desire.
She didn't look embarrassed at all. If anything, she looked excited.
I quickly looked back down at my desk, my hands trembling slightly as I crumpled the note again.
This was bad.
Really bad.
The shy, invisible guy who never talked to anyone was now being blackmailed by the most popular and beautiful girl in school… the same girl who had just aggressively kissed me and offered to have sex on the rooftop.
My mind was spinning. The crimson mark on my neck felt hotter than ever.
What the hell was I supposed to do after school?
The final bell rang, and school hours were finally over.
The sky had turned dark and heavy with thick gray clouds. A strong wind was blowing, carrying the smell of incoming rain. It looked like it could start pouring at any moment. I stood nervously behind the old gym building, hidden from the main gate. Most students had already left, and the school grounds were growing quieter with every passing minute.
My heart wouldn't stop racing. I kept replaying the note in my head. I knew I had no real choice.
After almost everyone had gone, I finally heard footsteps approaching.
Erico Hoshina appeared from around the corner, walking with her usual confident stride. Her long black hair swayed in the wind. The moment she saw me, a sly, satisfied smile spread across her lips.
Without saying anything at first, she walked straight up to me, reached out, and boldly took my hand in hers. Her fingers were warm and soft as they interlaced with mine.
"Come on. Follow me," she said in a low, commanding voice, already starting to pull me along.
I followed her silently, my pulse pounding in my ears. We walked away from the school grounds, heading toward the quieter back streets. The first few drops of rain had just started to fall.
After a minute of walking, Erico glanced sideways at me and spoke again, her tone casual but firm:
"You should call your house right now. Tell them you'll be coming home late today because you're going to a friend's place to study or hang out."
She squeezed my hand a little tighter and continued with a playful smirk:
"Don't worry, just make it sound natural. Say you finally made a friend and you're spending time with them. Parents love that kind of thing, right?"
I stayed quiet for a few long seconds, feeling a sharp sting in my chest.
If I told my mother I was going to a friend's house… she would probably be overjoyed. She had been worried about me for years because I never had any friends. She might even sound happy or relieved on the phone.
But the truth was painful.
I didn't have any friends.
Still, after thinking for a moment, I knew refusing Erico right now wasn't an option. Not after that blackmail note.
I took out my phone with slightly shaky hands. Erico stopped walking and watched me closely, still holding my hand. I dialed my home number.
After two rings, my mother picked up.
"Hello? Ren?"
I swallowed hard and tried to keep my voice as steady as possible.
"Mom… it's me. Um… I'm going to be a bit late coming home today. I… I'm going to a friend's house. We're going to study together for a while."
There was a short pause on the other end.
"Eh? Really?" My mother's voice immediately brightened with clear surprise and happiness.
"You made a friend? That's wonderful! I'm so glad to hear that. Take your time, okay? Don't rush. Just make sure to come back before it gets too dark. And be polite!"
"Yeah… I will," I replied quietly, feeling a strange mix of guilt and embarrassment. "I'll call you again if it gets very late."
"Alright. Have fun, Ren!"
I ended the call and lowered the phone, staring at the screen for a moment.
Erico chuckled softly beside me, clearly amused.
"Good boy," she said with a teasing smile, gently swinging our joined hands. "See? That wasn't so hard. Your mom sounded really happy."
The rain was starting to fall more heavily now, cold droplets hitting my face and uniform.
Erico looked up at the darkening sky, then back at me with that same dangerous, hungry glint in her eyes.
"Come on. Let's hurry before it really starts pouring."
She tightened her grip on my hand and started walking again, pulling me along with her.
We walked for quite a long time under the increasingly dark sky. The rain had started falling harder, cold droplets soaking into my school uniform. Erico never let go of my hand, her grip firm and confident as she led me through quieter back streets and away from residential areas.
Eventually, we arrived at a desolate, unfinished building on the outskirts of town — an eight-floor concrete skeleton that had been abandoned for nearly five years. The structure was raw and eerie: no outer walls on any floor, just bare concrete pillars, exposed beams, and open floors that looked like giant empty cages. Rusty rebar stuck out from the columns like broken bones. The whole place felt forgotten and dangerous. No one ever came here, not even during the day.
My stomach twisted with fear the moment I saw it.
Erico stopped in front of the dark entrance and turned to me with a small, excited smile.
"Here we are," she said softly, her voice barely audible over the sound of pouring rain. "This is perfect."
I stared at the gloomy, half-built building, rain dripping down my face.
"E-Erico… this place… no one comes here," I muttered nervously, my voice shaking. "It looks really dangerous. What if the floors are unstable? What if—"
Before I could finish, she tightened her grip on my hand and pulled me forward gently but insistently.
"Don't worry so much," she replied, her tone playful yet commanding. "I've been here a few times before. It's safe enough. No one will disturb us here. Just the two of us…"
She stepped into the building first, dragging me along with her. The moment we entered the ground floor, the heavy rain became slightly muffled, but the sound of water hitting concrete echoed loudly all around us. Cold wind whistled through the open floors above.
Erico looked back at me, her school uniform already wet and clinging to her body, clearly outlining the shape of her large breasts.
She gave me a devilish little smile and said:
"Come on, Ren. Don't tell me you're scared? I thought you were going to be a good boy and follow me properly."
I swallowed hard, my heart hammering in my chest. My feet felt heavy, but I let her pull me deeper inside. Water dripped from the floors above, creating small puddles on the dirty concrete.
The abandoned building felt like another world — dark, cold, and completely isolated.
Erico squeezed my hand again and started leading me toward the staircase.
"Let's go up," she said, her voice echoing slightly. "The higher we go, the more private it gets. I don't want anyone hearing you moan my name later."
Her words sent a shiver down my spine that had nothing to do with the cold rain.
Rain continued to pour heavily outside as we began climbing the unfinished stairs, the sound of our wet footsteps mixing with the roar of the storm.
We climbed the cold, unfinished concrete stairs in silence until we reached the 5th floor. Erico suddenly stopped and looked around.
"Let's stop here," she said, her voice echoing slightly in the open space. "This floor is perfect."
She released my hand and slowly walked across the entire fifth floor, checking every corner with sharp eyes. The floor was completely empty — just raw concrete pillars and an open structure with no walls whatsoever. It really looked like no one had stepped foot here in the five years since the building was abandoned. Thick dust covered the ground, and there were no footprints except the ones we had just made.
Cold wind howled through the open floors, biting straight into our wet uniforms and making me shiver. Rain was pouring heavily outside, but because there were no walls, the wind carried only a light mist toward us. We were mostly protected from the downpour, yet the cold was intense.
After confirming we were completely alone, Erico turned back toward me.
She walked closer with slow, deliberate steps. Her soaked school blouse clung tightly to her body, clearly showing the shape of her large breasts and hardened nipples. The closer she got, the faster my heart beat.
Without warning, she pressed her body against mine, pushing me back until my back touched a thick concrete pillar. Her soft, heavy breasts squished warmly against my chest again.
She looked up at me with hungry eyes, then leaned in and captured my lips in a deep, aggressive kiss.
Her mouth was hot compared to the cold wind. She kissed me greedily, sucking on my lower lip before pushing her tongue inside, licking and swirling it against mine with wet, obscene sounds. Thick saliva quickly mixed between us as she kissed me harder, almost like she wanted to devour me.
After a long, heated kiss, she pulled back just enough to speak, her lips still brushing against mine.
"Let's have some fun, Ren…" she whispered breathlessly, her voice low and dripping with lust. "Let's have sex right here."
Her hand slid down my chest as she continued, "No one will come here. We can be as loud as we want. I want you to fuck me here… right now."
As she said those words, I suddenly felt it — the crimson mark on my neck began to grow hotter, almost burning against my skin.
At the same moment, my eyes caught something on her body.
On Erico's left arm, just below her shoulder, there was an identical crimson red mark — the same ancient, swirling pattern as mine. It stood out clearly against her smooth skin, glowing faintly in the dim, stormy light.
She had the same mark.
My eyes widened in shock.
Erico noticed my reaction and gave a wicked, knowing smile.
"What's wrong?" she asked teasingly, still pressing her body tightly against me.
"Surprised to see we match?"
The cold wind continued to blow across the open fifth floor while the heavy rain roared outside, but the heat from the mark on my neck — and the burning desire in Erico's eyes — made everything feel dangerously intense.