Of course, their little arrangement could only last for the summer.
There was a limit, Lillian knew, to how far Prissy would allow herself to be abused--she'd already abandoned her little tryst with Clive in a snit after his failure to satisfy her--and Lillian was due back at boarding school in the fall.
But first there was a party to be had, a party to celebrate the end of the hot weather, a party that would be attended by both friends of Lillian's father and of Lillian herself. And since their time was short, Lillian decided that the party would be the perfect opportunity to finish things off with a bang, as it were.
Of course, she didn't share these plans with Prissy. But the morning of the party, she lingered around the serving quarters until she was able to grab the girl.
"I'm busy," Prissy said, scowling, and Lillian lifted her eyebrows.
"Not if you want your twitchy little cunt taken care of, you're not. This will only take a minute."
Prissy finally relented and followed Lillian, not up to her room, but just into the nearest closet. Prissy looked around warily, then glared at Lillian. "We're not doing anything in here. Someone'll find us."
"Maids screw themselves silly in these closets all the time, as you'd know if your aunt hadn't locked you up like a nun," Lillian informed her. "And besides, as I said, this will only take a moment, then you're back to work. Turn around and bend over."
Fortunately for her, Prissy was so used to taking orders by this time that she did it even as she was asking, "what for?"
Lillian didn't answer her. She unlocked the belt, pulled it down just enough to expose the girl's slit--clenching and glistening in response to the sudden draft--and pulled the toy she'd procured from the pocket of her skirt, sliding it up inside Prissy before the girl had a chance to object. Prissy took in a breath to speak but instead let out a surprised whoop as the wooden phallus, thinner than a real man's cock but ribbed in an appealing way, slid inside her desperate virgin tunnel.
"Oh! Oh, Miss, I, what--" Prissy stammered, then groaned as Lillian strapped the belt back into place, locking the toy into place inside her. Prissy's hips stuttered in a few quick thrusts, and then she stopped, groaning again, as she no doubt felt the other feature of the toy: the hollow core and the ball bearings secured within, which rolled around and around in the grooves carved for them, creating an incredibly stimulating sensation of shifting weight. "Ohh, Miss!"
"You like it?"
"I...oh," Prissy gasped, incoherent, rolling her hips slowly now as if she were fucking the air, entranced with the feedback from the toy within her. Lillian smacked her on her butt and pulled her skirt down.
"Come on. Back to work."
"What?" Prissy asked foggily, and then, "no, Miss, I can't work like this!" Even as she straightened carefully into a standing position, her gaze went distant as the movement must have made the toy press against something inside her or rock in a new way, and her thighs shifted restlessly like a whore being fingered.
"Well, you had better figure it out, hadn't you?" Lillian tittered. "There's so much to be done for the party!"
"Miss, please," Prissy gasped, and then pressed a hand at the space below her belly button and slid her eyes closed with a groan.
"Careful, now. You don't want anyone else seeing you like that," Lillian pointed out, and then opened the closet door. Prissy's eyes shot open.
"Miss--!"
Lillian was already walking away.
***
Lillian, of course, was quite busy as well for the next few hours. Guests began to arrive, and she was expected to entertain the ones she had invited. She spent most of the early afternoon swanning around the estate with her friends in tow, taking walks and gossiping about their upcoming semester.
At one point, while they passed through the front hall, one of her friends whispered loudly, "what on earth is wrong with that girl?" and pointed through an open door into one of the servants' back hallways. Prissy was visible just on the other side, standing with her back to the wall, rubbing her stomach in slow circles, her eyes closed, practically standing on her tiptoes.
"Must be sick, the poor dear," Lillian said. "Go on to the parlor, you know the way, don't you? I'll be sure she's alright."
"Oh, how good of you," her friend simpered. "Come on, ladies."
As the other girls went on ahead, Lillian stepped into the hall and pressed close up against Prissy's heaving body, trapping her against the wall and shoving a thigh between her legs until it bumped against the cold, hard curve of the chastity belt. Prissy gasped and jolted, her hips thrusting forward, and then she moaned. "Miss, please...this is..."
"What's wrong, dear? It feels good, doesn't it?"
"Yes..."
"Don't you want to feel good? Don't you want to come?" Lillian asked, as if she wasn't fully aware of the problem. It was, after all, a duplicate of a toy she used herself, and it was a very special one; the slow, rocking stimulation of the internal balls did bring pleasure, but it was very gradual, hours upon hours of gentle caressing building up. The final climax was often earth-shattering, but it was entirely unpredictable as to when it would happen.
"I'm afraid, I'm afraid it will happen while I'm, oh," Prissy groaned as Lillian cupped her hip with one hand and began slowly encouraging her to rock her hips, to make the balls start rocking. "Where people can see. While I'm--working. There are so many people here, and every time I step away for a second--"
"Is that what you've been doing?" Lillian giggled. "Trying to hide away in closets and empty rooms, humping the air? What a helpless little slut you are."