This story carries on directly from part 5, so maybe read that first. This story also gets dirtier, so if a little vomit and quite a bit of scat are not your thing I'd turn back now -- fair warning! Everyone's over 18, this is a fantasy with wildly irresponsible and unlikely behaviour, be good to each other, etc...
When she arrived home, Naomi learned three things. First, that young, sexy redheads like Chloe go out with their friends on a Friday night in preference to being caned by older, sexy redheads. Secondly, that Christina passionately loved her but was intimidated by the breadth and depth of Naomi's kinks. And third, that making a dominant woman who loves you spend several hours worrying about where you are when she expected you home hurts.
An enforced shower and detailed admission of the night's events later, she lay draped across Christina's knees, her lover/boss' heavy breasts resting warmly on her back as she lectured her about responsible use of mobile phones to let people know where you are. Then Naomi curved her spine, raising her full white cheeks as Christina's hand smacked down, stinging one buttock then the next, back and forth, Naomi's bottom flattening and swirling under the impact, going from pink, then deep pink, to red. The pain mounted, and tears fell, rolling down Naomi's cheeks, but she made no attempt to escape. She'd been naughty and she deserved punishing.
There was a pause, and her smarting, swollen bottom seemed to have endured its lesson for the evening. Then Naomi howled as a leather-soled slipper whipped down across her ruby nates and the punishment began in earnest. She was bawling, snotting, crying with no restraint like a toddler as Christina spanked and spanked and spanked and spanked her. From the top of her full cheeks, across the wide, fleshy expanse, past the sensitive under tuck, down the back of her thighs - until all was a burning red, Christina was unsatisfied.
She spanked Naomi until her own horniness prevented her from going on. At that point the slipper was dropped, Naomi was dragged upward by her shoulders and the two kissed, tongues questing deep into each other's mouths, two pairs of huge boobs squashed together, Naomi rubbing at Christina's pussy, Christina cruelly squeezing Naomi's tormented bottom, enjoying how hot it felt and how it made her young lover shudder and sob. The redhead licked the tears from Naomi's face, then slapped her bottom, eliciting more.
They fell together onto the soft bed, all fingers and tongues, licking and squeezing, stroking and rubbing, twisting into a 69, lapping hungrily at each other, tasting, probing. Naomi used her fingers too, first two, then three, then four, stretching and penetrating Christina as her tongue worked her clit. Christina's hands were still occupied kneading Naomi's hot, sore bottom cheeks, but her tongue worked overtime on her younger lover's snatch. Finally, after both had climaxed, they fell into a deep sleep, tangled around each other.
In the morning, wrapped in robes and sipping cups of tea, they had an open discussion about their relationship and their wants and needs. Naomi conceded to feeling jealous of the amount of time Chloe had been spending with them as the young ginger seemed uninterested in her, only wanting to spend time with Christina. However, she accepted Christina's assurances that nothing traditionally sexual had happened between the two of them other than on the first day Chloe turned up - it was simply that Chloe possessed a seemingly limitless desire for punishment and a lovely round bottom that recovered from the sternest application of the cane in a few days. Given Christina's rapacious need to spank, flog, paddle and cane, Chloe was a godsend.
For her part, Naomi shyly, haltingly, admitted to being an irredeemable pervert. She said she could hardly conceive of anything she wouldn't do as long as she felt suitably humiliated. She was completely submissive, and was happy for Christina to subject her to anything that crossed her mind. Naomi eagerly stressed that her full bottom could take anything that Chloe's could! But she did love wetting and messing herself, and understood that Christina was not totally ok with this. As she said this, her older lover blushed and looked away. "It's not that I'm not ok with it. Sometimes it's just so exciting and you look so innocent and naughty when you stand there in front of me. I can tell from your face, never mind your legs, what you've done. It's just, I enjoy it sometimes. I don't necessarily want to change the sheets every day, you know?" She looked apologetic, as if this was an unreasonable stance. She brightened. "But I just had an idea!"
Christina stood up and left the room, returning moments later with a package and a smile. "I hate to see things go to waste, so..." She brandished the packet of adult diapers. Naomi blushed, gulped and immediately felt horny. To be put into nappies like a baby would definitely push her humiliation button. The young brunette nodded acceptance. "I'm thinking that Sunday to Thursday we put you into a nappy so if you are a dirty little girl overnight, my only chore is punishing you, not doing a load of laundry." Both sets of eyes twinkled. They were enjoying this. "On a Friday and Saturday, maybe we leave the nappy off and see if you can behave like a big girl?" Naomi nodded eagerly.
Christina examined the pack. "There's only six in here, so let's get dressed and go shopping. You'll need to buy more - plenty more, I think. At a proper checkout so someone sees you buying a load of diapers in your size." Naomi moistened at the thought. The statuesque redhead gestured at the table. "Clear the dishes away, I'll go sort our clothes." Naomi nodded again, not registering the suggestion that her lover would pick out her clothes too...
Five minutes later, Naomi trotted upstairs to their bedroom. What she saw on the bed stopped her in the doorway in shock. As usual, Christina's entrancing 30F-30-39 body was in a classy lingerie set of black silk and lace - bra, panties, suspender belt and stockings - and she was choosing between one of two figure-hugging dresses. For Naomi, laid out on the bed, were a pair of white ankle socks with a ruffled trim, a plain white bra, a scoop-necked white t-shirt (that she bought but didn't end up wearing as the amount of cleavage on display made her feel cheap), a flared, blue mini-skirt (that she bought but didn't end up wearing as even standing still it barely covered her panties) and, of course, a diaper.
She flushed with excitement. She wanted to protest, but didn't want to. The nappy would be visible to people if she moved. There was simply no way she could walk into the supermarket, buy an armful of diapers in her size and leave without dozens of people eyeballing her boobs as she approached and her nappy as she left. It would be embarrassing. It would be humiliating. It was perfect.