Arthur couldn't help but notice how Rin is incredibly flirty for her age... And how she seems amazed by his manhood. Plus, she is super cute, but maybe he could make her turn over the perverted size even more...
Confidently, Arthur recorded:
"Rin here has a big ol' crush on her teacher, me. Not only that, she's obsessed with my dick. So much, just looking at my crotch makes her horny. She's embarrassed by that, and doesn't really understand anything about sexual arousal, just like the others."
Rin gulped. Hearing about how Arthur covered Zoey in his sticky sweat made her really jealous. She was very much in love with her teacher, so much she kept a photo of him in her bed to look at at night. Not only that, the favorite feature of him was, well, his big stick. She didn't understand why or how, but just glancing at him made her feel really good, like a warmth feeling from between her legs to her whole body, her heart beat getting faster and faster, her head getting a bit dizzy... Could it be love? Well, for her, it was. Even right now, she felt that good, and couldn't hide her smile. Arthur noticed it.
Arthur then pretended to take out his books for the lesson, and gave a few glances at Rin. At each glance, he caught her looking at him, and she looked away, turning red. Just the sight of the cute and embarrassed Rin gave him a hard on. So why not let her have a good look at it? He spread his legs, showing proudly his bulging crotch to Rin. The half-japanese girl couldn't hide her excitement, she opened her mouth wide and let out a:
- Wowh...
- What are you looking at Rin? Asked Cecelia.
- Nothing, I'm just...
- No way, you're staring at our teacher's...
- What?! No I'm not!
- Yes you are! Come on, it's just his wiener... Is it because we talked about it earlier?
- Yes... I mean no! I mean maybe...
- Come on, that's my brother! Said Zoey. And I don't get why you seemed so amazed, it's just a stick sweat stick!
- Come on, leave me alone...
- Yeah girls, intervened Arthur, I get that it's a fascinating subject for Rin. Let it be today's subject! Let's learn about... Brother and sister protocol, and Rin, you'll pretend to be my sister for this lesson!
- Wha...
Tabitha, Cecelia and Zoey pouted. Zoey even protested: "I'm your sister, I should be the one to show the protocol!" but Arthur's words were final. She asked Rin to get up and come to him, and said:
- First, you'll learn how to sit on a brother's lap properly.
- B... But... Wouldn't that be weird? I'm not really your sister and... And...
- Well Rin, maybe one day you'll have a brother, so it's important for you to learn how to sit on a lap like a proper sister. So let's just pretend! It will be fun.
Her body shaking, the young designated girl stood up, and moved closer to her teacher's lap. The big stick-like bulge visible on his pants. She knew what she had to do. She had to put this... Between her butt cheeks. She wasn't sure how, but most importantly, just looking at what she had to sit onto... Made her legs shiver. It was so beautiful, so...
"My dick suddenly doubles in size. Rin is the only girl that notices it. For the others, it was always like that."
... big?
Unbeknownst to Rin, Arthur recorded something in the dictaphone. She watched in awe as Arthur's stiff shaft quicky grew against his legs, bulging his pants even more, getting thicker, rounder... And even more imposing! Rin's heart was racing. How did it got so big? How could it be? And why she loved seeing it getting so big?! For Arthur, it felt quite weird, and bit uncomfortable at first, but seeing Rin shocked face was worth it. He couldn't believe how big his dick was though...
Zoey spoke up:
- You should give up Rin, only my big booty can handle my brother's stick. There's no way...
*snap* *snap*
Arthur snapped his fingers with his right hand. Two times.
- No way... Wait a minute, your...
- My butt...!
Zoey noticed the knee length skirt rising in the air, as the shape of two butt cheeks pressed against the fabric. Rin, startled, put her hands on her rear. And to her surprise, she felt two heavy and solid big cheeks stretching her panties!
- What the... muttered Rin.
- Well, I mean, you do have a big butt, but not as big as mine. So I don't think you'll be able to sit properly.
- Well, intervened Arthur, we'll see about it. Rin, turn around, and please do sit.
Reality changed. Rin always had a big round butt, which was very unusual in her family. Her panties changed to something more comfortable, but she always had issues finding a pair of panties that fit her figure. She was lean, with small tits, but a big bubble ass! She often wore a skirt, but even skirts couldn't hide her huge assets. But for Arthur... It didn't show them enough.
"For girls, a formal and a not sexy skirt is a very short skirt, a long skirt is a casual and sexy skirt. Rin's skirt is a very formal one."
Rin turned around and show her back to Arthur, and he watched her plaid skirt getting shorter and shorter, showing her knees, legs, thighs... And finally it didn't even hide the bottom of her panties, showing her glorious squeezed butt cheeks.
- Plus, you chose a really formal skirt for the occasion! Said Zoey.
- Yeah, you should ease up some times, wear a long skirt, or pants, I don't know. You look like you're going to the grand gala with that skirt. Said Cecelia.
- I never understood why for skirts, the shorter ones are the most formal. Isn't that a bit weird?
- Maybe, but still, that's the way it is!
Rin liked to wear a formal skirt, she didn't want to look to sexy. Yeah, it showed a bit of her butt, but that was a prize to pay to have a more formal look. But anyway, she now leaned to sit on Arthur's lap...
... And the feeling was just marvelous! Arthur could feel the tenderness of her ample thighs gently wrapping his huge and hard schlong. He couldn't even feel her heartbeat pulsating through his body! But for Rin, the pleasure was mutual. The object of her obsession right between her thighs... She was on top of the person she loved the most, her teacher! She knew that she was just pretending, and they was nothing weird, but still, she felt incredibly good. Her heart was racing, and she started to get a little red and sweaty. She muttered:
- So hum... Like that?
- Mmh, yes Rin, like that. See, not a big deal? But for the exercise, I think it's best if you call me big brother.
- Tee hee, I... Huh... Oh god, it's so embarrassing, but okay, I'll do it... Big brother...
Rin's tantalizing body jiggled on his huge penis, adding arousal to the irresistible cuteness of her reaction and timidness. She added:
-But still, you're so big... Big brother... Even with my big butt I feel like I can't wrap my thighs around your stick...
Arthur's heart was pounding to the sexiness of the situation. But still, she was right, even with her enlarged rear, it was just enough to caress his big shaft, not wrap it like Zoey used to. Well, that could be arranged, he could snap his fingers more... Or...
Mon Oct 29 00:00:00 2018