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Note to reader: this chapter focuses on extreme anal insertions. If that's not your thing, please skip to the next chapter.
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It was about 6pm when Maggie, Riley and Katie arrived back at Katie's villa. Katie had ridden in a cage in the back of the utility van, still wearing her dog costume.
Maggie lowered the ramp and opened Katie's cage and handed Riley the leash. She was surprised, but clipped it to Katie's collar and led her into the house, following Maggie.
The three made their way to the spa treatment area where Maggie and Riley helped Katie out of the dog outfit. Maggie removed Katie's chastity belt and supervised her having a shower.
When she was clean and dry, Maggie had Riley insert a large plug into Katie's ass, then locked her chastity belt back in place.
Maggie handed Katie a robe and sent her to her suite to dress for dinner.
Riley felt energised by the day's events. She had loved being the dominant at the party and with Katie even though she started the day as a submissive puppy as well.
Maggie and Riley showered together, taking turns soaping and scrubbing each other. Riley loved the feeling on Maggie's fingers massaging shampoo then conditioner into her scalp. She wanted to do more, but Maggie said they needed to go to dinner.
They changed into spare spa therapy uniforms and joined Katie, Neith and Farah in the dining room for dinner.
It was always a bit surreal chatting with Farah and Neith. They had been at the party and were well aware of what had taken place. But, they chatted as though nothing unusual had happened. It was like they compartmentalised everything sexual that was going on and were able to act as though none of it had actually happened.
Riley never pushed it, but got the feeling they didn't want to talk about it. It was kind of like having a family meal during a crises no one was dealing with--it was just over polite chit chat occasionally including small hints about upcoming trips.
After dinner, Riley and Katie went to the bar alone.
"You're starting to really enjoy yourself, aren't you, Riley?"
"Yes. I am. It's all new and I'm still feeling my way around...but yeah."
Katie nodded.
"They seem to be good at figuring people out. At the party, I'd thought that girl Eesha was in hell with all that pig stuff. But, she was actually loving it."
They sat quietly for a few minutes.
"Do you know what's next? We still have a lot of time here."
"You know the dildos we've been...using...on you."
Katie went bright red, "yeah."
"There's um...3 more."
"Fuck! Are you kidding? I thought that one today was impossible. I don't think I can handle anything bigger."
"Well. There's three more."
"Are you fuck-ing kidding me? How big?"
"The next one is just a bit bigger than today. The last two are like...unreal. One isn't that big around, but is long. Like very long. The other one isn't very long but is huge around."
Katie took a drink, "fuck. So that's what all the stuff with my ass is...trying to...stretch me. Why? What for?"
"Maggie said Basma hadn't done this before. So, I'm guessing it's just something she wanted to try. There were 7 in total. These are the last 3."
"When...how soon will you be...uh...trying the next one?"
"I don't know. You know how it is here...you almost never know what's going to happen next. I think the next one--blue--could go in with some work probably soon. I don't know about those last two."
"Fuck. The plug in there now is pretty big. I guess Maggie is trying to keep me stretched out."
"I think so. I don't even know if this is possible..."
A few minutes later, Maggie came to get Riley.
"Farah is ready to go back," then she turned to Katie and smiled a bit menacingly, "we see you in the morning. Busy day tomorrow."
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Riley ended up chatting with Addie and Maggie in Addie's rooms, all wearing pyjamas. It felt like ages since she'd seen Addie and it felt good to be back in her company. She squeezed her tight when she gave her a hello hug.
The three of them sat on the couch, with Riley laying on Addie's lap, Addie stroking her hair softly.
"Malik Basma has more plans for you. But, she wants you to complete the rainbow challenge," Maggie said.
"I watched some videos online...I've seen girls fit things like this inside them. But, I have no idea how long they had to...work at it before they could do that."
Maggie told Addie something in Filipino which made her laugh.
"Malik Basma doesn't seem to care about time," Addie said with some humour in her voice.
"She very demanding," Maggie added. "She very happy with you. If you can get the last 3 inside Katie...she will be very very pleased. But, we must work quickly."
Maggie got up and left the room, returning a few minutes later with the largest two dildos--blue and violet.
She tossed the biggest one to Riley. It was over 3" in diameter and more than 10" long. It looked more like a giant butt plug than a cock.
Maggie was waving the other one around, making it jiggle in her hand. It was huge, but just seemed more...possible.
"I think we could easily get these in her pussy. But, her ass will be hard," Maggie said, looking at it thoughtfully.
"They just seem...too big."
Maggie slid out of her pyjama shorts and at the dildo on the floor, standing over it. She squatted down, facing away from the others. She gingerly lowered herself onto it and Riley watched her easily take most of it inside her pussy.
"That's not your ass," Addie said, laughing.
Maggie said something in Filipino and Addie got up and went to her bathroom, returning with a large bottle of lube.
"Eto na," she said, handing the bottle to Maggie.
Maggie rubbed lube on it and carefully squatted over the dildo and slowly lowered herself, using her hand to guide the tip to her anus. She pushed downward, sort of slowly bouncing on the tip.
Riley watched as she slid the first inch or so into her ass before stopping and standing up.
Addie clapped, "very good. But, not enough. If that's all we needed to get inside Katie, this would be easy."
"I got it started. I could have done more...just not all of it."
"Show us how much more."
Maggie frowned and looked at the dildo. She put a lot more lube on it, then squatted down again over it.
Riley and Addie moved over next to her--Addie crouched to get a better view.
Riley watched as she closed her eyes and concentrated. She sort of shook herself, trying to relax more. Then she pressed downward, sliding down until about â…“ of it had disappeared into her ass.
Addie reached between her legs and started to rub Maggie's clit. That seemed to encourage her and she bounced and pushed down more forcefully.
She started making soft but determined moans with each thrust downward, getting louder and more forceful with each thrust.
Addie pointed her head, calling Riley over wordlessly. Riley figured out what she wanted and began teasing Maggie's boobs through her thin top as Addie began kissing her.
Maggie began fucking the dildo a little faster with deeper strokes. She was moaning, her cries muffled by the kiss.
She was getting closer. Addie broke the kiss and started saying what Riley guessed was encouragement in Filipino--short sentences that sounded like commands.
Riley kneeled down, pulled up Maggie's top and began suckling her nipples, teasing them with her lips, tongue and teeth.
Maggie let out a squeal and came, making a final hard thrust down onto the dildo. Addie pulled her hand away and kissed her softly.
Addie and Riley looked underneath Maggie--she had about â…˜ of the dildo in her ass.
They both smiled. Katie could do this.
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The next morning, Riley went again to Katie's villa and made her way down to the special rooms in the basement. Maggie had arrived earlier and had left a pair of tights out for her in the main room and Riley quickly changed into them.
Riley peeked carefully into each room, quietly opening and closing each door until she found them and silently entered, not wanting to alert Katie to her presence too soon.
Katie was bound laying on her back with her legs in the air, bent at the knee and secured to a bar suspended over the table. Her wrists were cuffed at her sides and her collar was chained to a ring in the table. She had an unusual harness that crisscrossed her body.
She was almost naked apart from her collar and cuffs--Maggie had already removed her chastity belt.
"Perfect time. I just getting her ready," Maggie said jovially. She leaned over and put a ball gag tightly into Katie's mouth.
For the first time since all of this began, Riley thought Katie looked actually scared. Her eyes were pleading, but she couldn't even mumble through the tight gag.
"She wore the big plug to bed last night. I only took it out a few minutes ago. Her ass should be nice and loose."
Maggie slapped the side of Katie's ass just hard enough to make a smacking noise.