" why am I wearing this again?" Len was blushing, somehow the 2 girls had forced him into wearing one of Rin's outfits, it was made of blue denim with low cut shorts and crop top, it had a chick on the front and wings on the back, Len was not amused. " you promised to cheer me up, I hate being sick and this is the only way to make me feel better" Miku was in bed, her face was pale except for her cheeks which were bright red, her reaction to Len's attire. In the corner Rin giggled, she loved dressing him up, his reactions and appearance were always worth the playful punchings from him afterwards, that wouldn't happen today since this was Miku's request. "its now time to play tie up" Rin pulled out one of Kaito's many scarves, she somehow overpowered Len and tied him to the chair he was sitting on. " hey this isn't apart of the deal, untie me now!" Len wasn't happy with how this was going. " actually this is an add on, while you changing me and Rin decided to see if we could get your body to react to this" Miku pushed the covers off herself to reveal that she was naked, Len tried to avert his eyes from Miku's unblemished body, he couldn't Len just sat there gawking, something moved in his pants, Len tried to hide it but that was impossible. "so you like Miku then" Rin said in a sing song voice.
"no I don't"
"oh really, the bulge in your trousers says something else"
" I wonder if Len likes anything else Rin?" Miku had an evil look in her eye which Rin Mirrored, this seemed to be a signal for something. Rin moved over the where Len was, she moved close to his face like she was going to kiss him instead she took of her top, showing her blossoming chest, she pushed it into Len's face, somehow Len blushed more, this wasn't right, this was his sister, he turned his head from the sight in front of him. Rin looked pissed " no no, that isn't the right way, you should be looking at me, not the wall" for his naughtiness Rin took off her shorts, now she was only wearing panties, "how does this look for you, is it too racy?" Rin was deliberately teasing him. Miku was annoyed that Rin was getting all the attention, she pulled Rin to her and kissed her passionately, they kissed for a couple of minutes before separating to catch their breath. In this interlude Miku pushed Rin down onto the bed, she then put her hands down Rin's panties, rhythmically pulsing her hands up and down, Rin let out little moans of pleasure, they kissed once more, biting on each others lips while Rin fondled Miku's bosoms. Len watched this with horror and ecstasy, he know he shouldn't be enjoying this but he was, "let me join in, please, I'll do anything you ask."
Miku and Rin looked up like a spell had been broken, both looked at each other smiled and went to let Len join in, they kept his hands tied up but they let him off the chair, they pushed him onto the floor. " lets see if you really want to join in" Miku took off the tiny pair of shorts on Len, underneath the cloth was his stiff penis, Miku started to lick it slowly, she kept this up until he exploded from pleasure, his sticky white seed was all on Miku's face, she just smile. Rin started to lick it off of Miku's face, after that she took of her soaking wet panties and bent over the bed showing her woman hood to Len, Miku pulled him up and pushed him towards Rin, Len inserted himself, as he did this Rin let out a little whimper, he started to thrust his hips, making Rin cry out every time he did so. Eventually Rin did a final moan, Len gasped and pulled out leaving a trail of semen behind, Miku had waited patiently while the two siblings went at it, this time it was her turn. Miku untied Len's hands so he could rest on his back while also moving Rin to the top of the bed, when he was in this position Miku got on top of him, making sure to get him inside her, she did all the work, Miku went up and down on Len's penis, she went faster and faster, her moans were quiet and cute. Len and Miku reached their limit together, they separated and collasped onto each other. Len crawled up to his tired sister and cuddled her, he looked at Miku, she was getting redressed, her face still looked a little feverish. Len made Rin get up and dress, he did the same, they both left Miku's room, going back to their own room to be tender with each other. The three of them never talked about that day and the one's after that, it was their little secret.