Final part. Please see Part 1 for description and content warnings.
Ron returned home half an hour later with McDonalds and a bag from the local adult novelties store.
Throughout dinner--a burger for him, and chicken strips for his slave, because she always seemed more excited about those--he caught her peeking up from the floor, where she knelt by his chair, to peer at the bag at the end of the table.
"Master," she asked finally, picking anxiously at the empty packaging for her finished meal, "Is that...something for...what we talked about earlier?" Her voice wavered a bit as she seemed to force her way through the question.
"Yeah, sweetie, it is," he said, wiping his hand on a napkin before reaching down to pat her cheek. "Why do you sound nervous? Are you having second thoughts?"
"No!" she said quickly. "I do want to be a good girl, and--and even if you had to go buy something to punish me, whatever it is, I want it, I want to be good! I just--I'm just scared, I'm sorry, you've never punished me before and--and I'm scared."
"Punish you?" Ron asked, bewildered. "I didn't buy something to punish you with. Is that why you've been looking at the bag like that? No, sweetie, come here, I didn't mean to scare you." He tugged her close until she snuggled against his leg and pressed her forehead to his thigh. "Why would you think that?"
"I...but...how else will you make me not want to come any more, Master?" she asked in a small voice, peering up at him with big, worried eyes. "How will you make me a good girl without punishing me?"
"First of all, you're already a good girl," he said firmly, cupping her face in his hands. "I guess I'd better just show you what I bought, so that you're not wondering any more. Go to the bedroom and wait for me on the bed, okay? I want to clean up in here and wash my hands first."
She nodded into his thigh, her expression still somewhat nervous, but also grateful at the promise that he was going to explain. Once he let go, she stood and hurried into the bedroom as instructed, only pausing to drop her empty food wrappers in the trash.
He took his time finishing the last couple of fries and then cleaning up, figuring she was probably washing her own hands and face from the greasy meal in the master bathroom--she often preferred to take care of her personal hygiene out of his sight, sneaking it in where she thought it wouldn't be an inconvenience--before going to the bag and pulling out his purchase.
It was a smooth, jet-black latex dildo, around the size of his own cock. He remembered the post on the forum about sizes, and he definitely didn't want to scare his girl with something too big; he hoped that since she was able to take him comfortably in her back end, she wouldn't be frightened of something the same size going in the front.
The instructions on the box said to wash it before use, so Ron unboxed it there in the kitchen and gave it a quick wash and rinse in the sink. Then he went and retrieved the key for his girl's padlock from the drawer where he kept it next to her vet paperwork.
Finally, with all necessary pieces assembled, he made his way to the bedroom.
His slave was seated on his bed, waiting patiently. When she saw him, she smiled automatically--and then she saw what he had brought with him, and her eyes went wide, flicking from the toy in one hand to the key in the other. "M...Master?"
"This is for you," he said, holding up the toy. "Or--for me to use on you, I mean. I did some research, and I thought about it, and if you want to come, then I can unlock you once in a while to make you come. As a reward, because you're such a good girl."
By the time he finished explaining, her eyes had grown even wider, and her pupils had visibly dilated, despite the bright lighting in the bedroom. Her knees pressed together and she looked like she was fighting not to squirm in place. She opened her mouth as if to say something, then closed it again and chewed at her lip, glancing rapidly between the toy and the key and Ron's face, as if worried that she was misunderstanding.
"You want that, right?" he asked, stepping closer to the bed and putting the toy down next to her so he could run his fingers through her hair again. She leaned into the touch, staring up at him with big, dark eyes. "Doesn't that sound nice? Coming with this toy in your pussy?"
"Yes," she gasped, almost at a whisper, like she was afraid to say it out loud. "If--if you really mean it, Master..."
"Of course I mean it," he assured her, smiling a little at how she glanced quickly at the toy again and shifted her weight. "Here. Spread your legs, sweetie, let me get at the lock."
"Yes, Master," she said immediately, her voice still hushed, like she was afraid that someone would overhear them. She spread her legs and stared as Ron crouched down to get between her thighs.
Her pussy was wet. That was the only word for it, and it was obvious even with it locked shut; Ron had to wipe some of the slick liquid away from the lock to get a good grip on it, just to get the key in.
He felt a brief pang of guilt, wondering if it should've been obvious to him, that his slave was feeling so sexually unsatisfied. He'd noticed before, of course, that she dripped more between the legs than a free woman, but he'd kind of thought that was just because of the training, the way she'd been taught to be a natural slut.
Now, as the key clicked in the lock and he pulled it apart into two pieces, allowing her pussy to fall open and expose itself to him for the first time, it seemed obvious how needy she was. He felt kind of neglectful, for not having thought of it sooner, never even unlocking her to look at this part of her body.
She was pink, and wet, and clenching in rapid little movements, like just the stimulation of his breath was making her more excited. The shield that covered her clit glinted brightly as her body twitched. When he used two fingers to spread her labia apart, taking an even closer look, she took a shaky breath in and grabbed at the bedsheets, and a little glob of fluid dripped out of her all at once.
"Aww, sweetie," he murmured, rubbing her thigh. "Have you been wanting to come really badly all this time? I wish you had told me sooner."
"Sorry," she whimpered, shifting in place and digging her toes into the carpet on either side of his knees. "I--I was just trying to be good and not want it. I want to be good for you, Master."
"You are good for me," he assured her again. "You're such a good girl. That's why we're doing this, remember? A reward for being so good. Right?" She nodded quickly, chewing her lip and looking at him with wide eyes, and he smiled. "Lay back on the bed and spread your legs, alright? I think that'll be the easiest way."
"Yes, Master," she said, and hurried to comply, pushing herself back to lay on her back, legs open wide.
Ron climbed up onto the bed with her, taking the toy and straddling one of her thighs. But he didn't go straight in with the toy; her sex was so soft and inviting to look at, he couldn't help but touch it himself first, rubbing two fingers through the soft skin of her slit before pressing them into her.
