Once upstairs Lisa was pushed into the bathroom. It was large and spacious with a separate toilet cubicle. The two women followed her inside and closed the door. "Everything off girl!" It was an order. Susan's eyes were sparkling with excitement. She sat down on the edge of the bath to watch. Lisa tried to avoid looking at them both as she unzipped her frock. She crossed her arms in front of her, grasped the hem and tugged it over her head. Her boobs sprang out towards the very interested women, her hard nipples pointing out and slightly upwards. She stepped out of the horrid thing. "Pick it up girl! You don't want to spoil it!" The older women smiled wickedly, "Get those knickers off". Lisa pushed her knickers slowly down to her ankles, stepped out of them and put them on a chair with her dress. Now she was totally naked and exposed to them. Susan had started giggling and laughing at the girl's bare pussy, "I can see her lips and everything, this is so cool!" Lisa didn't know where to look or what to do, her face was absolutely scarlet but much worse was to come. Miss Cooper reached out and grasped each of her nipples in a vice like grip, "Hands on your head girl!" Lisa did as she was told, "Feel these Susan, they're like little pebbles!" Tears sprang into Lisa eyes as the young girl eagerly joined in, pulling and pinching them at the same time. "Oohh! Ouch! Please don't! It hurts! Ow! Please stop!" Somehow she managed to keep her hands on her head as she twisted back and forth. "Stop making such a fuss you little slut!" said the ex-teacher giving the nipples a final hard twist, "Get down on your hands and knees and put your head on your hands, hurry up!" Lisa did as instructed. "Spread your legs and dip your back girl, I need access to that naughty bumhole of yours!" Susan Sellars had a superb view of the young woman's genital anatomy, she could see every detail. Lisa kept her forehead pressed to the carpet caught in a sea of humiliation. But such a shameful display was making her pussy leak clear fluid and she was sure they would notice. Miss Cooper produced a tube of lubricant and a large plastic sachet from her bag. Two tubes, one twice as long as the other, protruded from one end. "Susan, would you like to get her bumhole ready for me?" she said, passing the tube to her, "make sure you get it well inside."

Susan needed no further urging. She quickly put a glob of the lubricant on her fingers and approached the spread buttocks. The older woman laughed at Lisa's wail as the young girl's finger slid into her bottom. Susan was having a lovely time, she'd never been able to do anything like this to another girl before, and certainly not to a fully grown woman. Pushing her finger in as far as she could brought forth a quite delightful moan and she couldn't help giggling as the bumhole squeezed her finger. Lisa's hips rotated this way and that and she groaned as the finger worked itself more forcefully into her bottom. "She can take more than that Susan, don't be frightened, use a couple of fingers and you can afford to be a bit rougher!" Susan began to wedge two fingers into the stretching bumhole, pushing them in and out as hard as she could. By curling them when they were deeply embedded inside the rolling bottom she was able to make Lisa cry out and beg her to stop, "I'll be good please stop. Ooooh! No! Oh please don't! Aaahhhh!" Her bum was rolling around all over the place and she was shaking her head from side to side. Susan was very excited by the time Miss Cooper smiled and motioned her to step back. "You're a really dirty little girl. I can see what's going on here. You're getting turned on you little slut!" She ran her fingers along Lisa's slippery vaginal lips from front to back causing her to gasp and wriggle her hips in response. Suddenly she felt the tube pushing into her bottom, much further in than the girl's fingers had gone. The woman squeezed the sachet until all of it's contents had gone. Lisa's insides immediately caught fire. Slipping the tube from the puckered bumhole Christine Cooper replaced it with a rubber plug which sealed the girl tight. Lisa began to moan more urgently and roll her hips around wildly, "Please take it out! OwOwOwOw! It's burning me please! Ohhhh please let me go to the toilet!" "Don't be silly young lady," said the woman glancing at her watch, "you're going to hold it for the full ten minutes." Lisa began a series of bumps and grinds, wriggling her hips and bottom in all directions. "Please Miss, ooooohhhhhh! Please let me go!" "Keep still you silly girl!" "What's it doing to her?" asked Susan as she started to laugh once more. "It's rapidly reducing everything to fluid so we can flush her out properly." Finally Lisa was sent into the toilet cubicle to relieve herself. Shaking, she tottered out to face them once more. After being made to carefully wash the buttplug she was made to kneel in the bath. This time the tube that was roughly pushed into her poor bumhole was attached to the shower fitting. Warm water filled her to bursting several times before Miss Cooper was satisfied. "Right Susan, just give her a good soaping then we can rejoin the party." As the ex teacher collected her things Susan soaped Lisa thoroughly between her legs. The girls fingers opened both holes causing Lisa to gasp and squirm on the questing digits. Sliding her hands between the older womans buttocks Susan couldn't resist forcing them apart and taking one last look at the wrinkled anus. Lisa's face burned with embarrassment at the girl's intimate examination but she tried to be good and did her best to remain still.

Downstairs in the lounge and back in her party dress Lisa was told to stand next to Timothy at the side of the room. Jackie Freeman of "Sublime Products" began her presentation by describing and displaying their extensive range of dildos, vibrators and buttplugs. The bewildering array of shapes and sizes caused much merriment among the giggling ladies. As the false cocks were passed around they continually glanced at Lisa and the boy. Their comments and bursts of laughter filled Lisa with dread. As she watched they investigated several items of bondage equipment and her anxiety grew, especially when they began slapping various straps, paddles and whips against their palms. At her side the boy was also growing increasingly nervous and agitated. After an hour the women thanked Jackie for her excellent and amusing talk. Everyone clapped before the general conversation turned ominously towards the actual demonstration of certain items. Lisa jumped when Mrs Henderson spoke; "Lisa! Come over here, it's time we started your punishment," she did as she was told and stood in the centre of the room facing the ladies. "Take off your party dress." They weren't going to make her strip, they couldn't do that! Oh god no! "Didn't you hear me girl? I said take your dress off!" There was a moments silence before Lisa started pleading, "Oh please Miss don't make me take it off in front of everyone, please!" Mrs Henderson started laughing at Lisa's obvious distress, " Why on earth not young lady? You take every opportunity to show people those boobs of yours and that fat bottom. Get it off now!" The sexual tension in the room suddenly increased as Lisa reached behind and unzipped the frock. Swallowing hard she pulled the thing over her head and let it drop to the floor. Her boobs with their pointy nipples immediately sprang into view. She felt the boys eyes devouring her breasts which caused her nipples to harden even more. The ladies drank in the sight. "That's better isn't it? It's what a dirty girl like you needs, in front of everyone, mmmm?" Lisa's face turned scarlet as she looked at them close to tears. "Knickers too Lisa, we're all waiting." "Oh please no Miss, not in front of him, please," she pleaded, glancing at the boy.