Joshua had been looking forward to seeing the alcove occupied since it had appeared off the lower concourse at the corner of the first passage going to the Bakerloo platform four in his home station, Waterloo. It meant that soon the teenager wouldn't have to go up the line to Embankment, Charing Cross, Piccadilly Circle, or Oxford circle to hear the delightful playing of one of the young naked enslaved pianists.
Not that he wouldn't occasionally go to hear Becky, Clara, Ana, and Nora. They were good pianists, and he wanted to see them develop. They played very well, and Becky's pregnancy was especially visible now. Still, he could spend a lot more time listening in his home station than going to one of the others.
The other stations had an alcove dedicated to the piano, but it looked like a different track had been taken for Waterloo. Instead, a corner had been removed, creating a small room, open on the concourse and passage sides, only the bars in the wall and gate impeding the view and sound of the piano. As Joshua entered the concourse, he noticed a young girl, who couldn't be more than nine, if that, going through the gate to sit down at the piano. She was wearing a light blue jacket with musical notes on it, a gray skirt, and saddle shoes. The gate closed with a clang. Joshua was going to see exactly how a girl became what TfL was calling their peeled pianists.
As she began to play Joshua secured a place on the concourse, next to the gate, to watch and listen. His angle was enough that he could see her from right on side, unlike the mostly rear views at the other stations. He saw the first chain drop from the ceiling and find the girl's necklace, and begin to shorten and thicken the chain of that existing gold necklace with its TfL roundel dangling from it. It didn't stop her playing.
Joshua expected to see the mother of the girl arriving, but instead, a teenage girl, who couldn't be more that Joshua's own fourteen years arrived, and cried out, "Not Kim too. Mum's going to kill me." The neck chain was now firmly attached to a shackle that had once been her gold necklace, with the TfL roundel still dangling from its front, as Kim kicked her shoes off. She wasn't wearing socks. "She trusted me to prevent my littlest sister from joining Becky. Not Kim too!" Kim's jacket slid to the floor, revealing her white long sleeve shirt which also had musical notes on it. It didn't stop her playing.
"She's related to Becky of Oxford Station?" Joshua asked, as chains sought out Kim's bare ankles. It didn't stop her playing.
"Yes, they're both my little sisters," the teenage girl said, as the chains closed around her sister's ankles. It didn't stop her playing. "I was supposed to be taking Kim up to visit Becky, and make sure she got there, but Kim had to find an open enslaving piano."
"I enjoy Becky's playing," Joshua said watching the laser begin to burn a pair of cuts on Kim's skirt. It didn't stop her playing. "Do you play too? There is nothing you can do to stop your sister's enslavement at this point."
"I know. I play the violin," the teenage girl said, as the ankle cuffs solidified around her sister's ankles. It didn't stop her playing. "I'd better call Mum." As the teenage girl pulled out her phone, Kim's skirt fell off her, revealing her white panties which also had musical notes on them. "Mum, this is Maddie. Kim just got caught at Waterloo Sation. I know, I was supposed to make sure it didn't happen. You couldn't stop Becky. I'll stay with her until you arrive. Bye."
"I play the cello, I think I've seen you playing with Becky," Joshua said, as the laser began cutting Kim's shirt. It didn't stop her playing. "My name is Joshua, Joshua Welby. What's Maddie short for?"
"Madeleine, Madeleine Wyvern ," Maddie said, as Kim's shirt slid off her body, leaving her in just her note-covered panties. "Kim likes to do duets with cellists. Maybe you can do a few."
"Only if you join us a few times, and maybe go with me to lunch or dinner," Joshua said as the chains began dangling to capture Kim's wrists. "I live above a place just a block away that makes really good pasta." He hadn't noticed the cuts on Kim's panties, but they now fell free, leaving the girl naked.
"Pasta? A boy after my own heart," Maddie replied, as her sister's wrists were captured by the chains. It didn't stop her playing.
"So lunch or dinner?" Joshua asked, as Kim's wrist cuffs solidified, finishing the capture process. It didn't stop her playing.
Kim and Maddie's mother arrived, just a few minute's later, the station master following. "Hi Mum," Maddie said. "You can watch Kim now, she's not going anywhere. I'm hungry, so I'm going to take up my friend from science class, Joshua's, offer for lunch. Bye." It didn't stop Kim from playing.
Joshua found himself being pulled out of the station at Maddie's side. "You're in my science class?" Joshua asked, no longer able to hear Kim playing.
"Oh yes, and I've been wishing you'd ask me out all year," Kim said. "And since Mum's going to be busy with Kim, I have the time to get a real good date."
And it was a really good date. In fact, Maddie spent the night with Joshua, and they were no longer virgins by morning. In the morning they met up with Maddie's parents, who being distracted by Kim's situation didn't really notice what had happened between the two. Joshua dragged his cello to the station and took a seat on a bench next to Kim's piano to preform duets with her, and become a trio when Maddie joined in, her mother having brought her violin.
It was a Sunday, so they stayed all day, and into the night. The station master let them have lunch and dinner with Kim. Maddie didn't leave on the last train with her parents, but joined Joshua in his bed again for the night, as their school was closer to his house. Nothing stopped Kim from playing.
Before school on Monday, Joshua and Maddie had breakfast with Kim. Both girls discussed what they wanted to play together, as the station master talked to Joshua. Having a trio play at his station gave him a one up on the other station masters with live enslaved music. All too soon, it was time for Kim to be locked in her alcove. Nothing stopped Kim from playing.
After school, Joshua joined Maddie in her journey to Oxford Circus, where Maddie played with her middle sister Becky. They had dinner together before Joshua and Maddie headed to Waterloo. Then when they got to Waterloo, and took out their instruments, the station master let them into Kim's alcove so they wouldn't impede the traffic. Their presence didn't stop Kim from playing.
Once they were in the alcove, Joshua and Maddie couldn't stop playing either. Joshua sat in a chair that had been provided for him, and Maddie stood. As they played, Joshua noticed that a chain was now dangling down from the ceiling above Maddie. He couldn't do anything for his girlfriend as it touched the back of her neck and stuck to her necklace. Nothing stopped them from playing.
Joshua watched as the laser cut Maddie's jacket, letting the grey jersey fall to the floor to reveal her scarlet school vest and white blouse. She kicked off her shoes, leaving her in long black stockings heading up all the way under her gray school skirt. He couldn't do anything for his girlfriend and nothing stopped them from playing.
The laser cuts next released Maddie's skirt, sending it to the ground, revealing her modest white panties. Then the laser cut Maddie's stockings, first left, then right, first appearing as if the stockings had runs, before they slid down to the floor, one after another. Joshua couldn't do anything for his girlfriend, and nothing stopped them from playing.
The chains moved out from the wall and caught Maddie's ankles, twisting around them. The lasers took care of Maddie's vest, which only fell to the floor when a brief pause in the tune allowed Maddie to release the pressure that was keeping it up. The blouse swiftly followed, leaving Maddie only clad in her plain white panties and a matching plain white 34 B size bra. Joshua couldn't do anything for his girlfriend, and nothing stopped them from playing.
Chains now dangled from the ceiling again to catch Maddie's wrists, her ankles now securely cuffed. The lasers took care of Maddie's bra, causing her breasts to fall free as it dropped to the floor. Her panties swiftly followed, revealing her bush, and leaving her naked. Joshua couldn't do anything for his girlfriend, and nothing stopped them from playing.
When the station was about to close, the station master let Joshua out of the alcove, leaving the two sisters to move to the bunks that dropped out of the wall. But before he left, Joshua made love to Maddie. It was the only thing he could do for his girlfriend, as nothing could stop them from playing.
Tuesday morning before school, Joshua went to the station to have breakfast with Maddie and Kim. Maddie's pussy was now bare, and both of them wanted him. Somehow he managed to make love to both Maddie and Kim before he had to head off to school. Maddie didn't join him. The station master said she was done with school, unlike Joshua, as nothing would stop them from playing.
After school, he joined them in the alcove, making them a trio. He knew he shouldn't have, but he couldn't break the trio. As he sat playing his cello, he felt the chain dangle against his neck, then slide around it. He knew he wasn't going home anymore, as nothing would stop them from playing.
Joshua couldn't see the lasers cut it, but soon his scarlet school blazer slid to the floor with multiple cuts preventing it from staying on him. That left him with his white shirt, trousers, and white socks as he'd already kicked off his shoes. He felt his enslavement increasing with each piece lost, as nothing could stop them from playing.
Joshua's trousers fell off his body next, revealing his plain white briefs. He couldn't stop his socks from being cut off his body either. The chains snaked around his ankles, and soon his ankles were secured to the alcove as well as his neck was already attached to the ceiling. His free will fell away with each piece of his clothes, as nothing could stop them from playing.
Joshua's briefs' brief time as his only clothes was soon over, as they fell free of his body too. He was naked now, and nothing could stop the TfL roundel from being burnt into his shoulder, just like the two sisters. He was now as enslaved as the girls, as nothing could stop them from playing.
When the station was about to close for the night, Joshua was taken out of the alcove to get the final treatments. He obeyed the station master, and slept in her office as the last changes were made to his brain, and his body hair was removed, just like Maddie's had been for sanitary reasons.
The next morning was the start of his new routine, locked in the alcove with the sisters. Both girls were leaking his seed by the time the station opened, and unlike the other stations, there was no pause in the music for lunch during peak, the instruments just rotated. Joshua's father never came to visit, but the sisters' mother did, lamenting that she'd lost all of her daughters. They were allowed out nightly to exercise, Maddie usually playing her violin as she did so. There was always live music playing when Waterloo station was open. Then when the station closed, Joshua took each of the sisters; nothing could stop him from playing.
Days turned into weeks, and weeks into months. Soon both Kim and Maddie were suffering from the nausea of morning sickness, and then their bellies began to swell with Joshua's babies. Officially, Kim was still just nine, Maddie thirteen, and Joshua fourteen, and they still looked the same save for the girls' pregnancies as the day they were enslaved. Only their hair grew and only Joshua ever got a haircut. Nothing could stop the trio from playing.
When it came time for the sisters to give birth, one by one, as labor hit, they were sent home by tube to Kenton to give birth. Joshua was alone in the alcove, but nothing could stop him from playing.
They returned a week later, leaving their babies behind. Joshua welcomed them, making love to them. It did not take long at all for Joshua to make their bellies to swell again. After all, nothing could stop them from playing.