It was 1928. Last year, Lindbergh had made his solo flight across the Atlantic. The world's economy was booming, and civilisation was making huge technical leaps forward. It was an era of luxury and decadence. The British Empire was at its peak, and the people of that tiny country controlled a vast amount of the earth's land mass and its people.
Yet somehow the beautiful Ursula, after being brought up in England to wealthy parents, having gone to the most expensive schools, was now naked and chained in a coffle of slave girls being marched across the African country of Natawe to be sold at auction.
Ursula was the only white girl on the coffle, and felt entirely vulnerable. She was also extremely frisky, which was making it hard to focus on finding a way out of her predicament.
All of the slave girls had the Natawe aphrodisiac smeared across their sex daily. At the end of each day's marching, they would be ordered to bend forward with their legs apart, exposing their cunnies. Passers by would be given the delightful sight of a coffle of exposed pussies, ready for basting. The slave trader's female assistants would then smear the aphrodisiac balm around and inside each girl's sex until they started to wriggle and moan.
The aphrodisiac is used to keep a slave girl rampant. It renders them totally submissive and keen to provide carnal pleasure to their owners. It also brings out a girl's exhibitionist side, which was useful, as slaves often found themselves completely exposed according to the whims of their owners.
Normally, a girl would be dosed with the balm once a week, but slave traders applied it daily to all of the girls in the coffle. This ensured a slave girl's mind was too addled to think about escaping while on their way to auction. It also made sure that any slave would be quite uninhibited by the time they reached the auction block.
The coffle chain was attached to a horse and cart, which moved at a reasonable speed. Ursula didn't quite have to run, but she was certainly compelled to perform a rapid trot as the cart moved along.
She couldn't deny the fact that her current situation was most sensual. Nude, chained and manacled, and forced to trot down a busy public road. She could feel the wind across her naked breasts and her bare bottom. The reality of any free citizen being able to ogle her person as she hurried along excited her.
As well as this, she was becoming obsessed with the beautiful naked black bum of the girl in front of her on the chain. She had been watching these exquisite buttocks moving and wobbling as the girl trotted forward for a day and a half now. The delightful derriere was in her vision all day from sun up to whenever they rested for the night.
"It's a beautiful bum, isn't it?" said her peer, N'Fala, who was next in the chain behind Ursula. "Before you joined the coffle I had a perfect view of it for three days. I couldn't stop rubbing myself."
An effect of the enormous dose of aphrodisiac applied to the coffled girls was that they constantly needed release, and so they would freely masturbate as they were hurried along by the cart and chain.
The girl in front would occasionally look behind so she could get a cheeky glimpse of Ursula's white breasts and shaved pussy. She would wink at the English girl and then turn her attention to where she was walking. Her hand would move to her sex, and Ursula would see the girl's elbow moving as she was clearly pleasuring herself.
"Gosh, that's making my fanny gallop," said N'Fala. She had somehow picked up a number of coarse English phrases from the days she spent in Britain, at the expensive private school her parents sent her to. "Her buttocks are very well toned, but they wobble nicely as she steps."
N'Fala was first dosed with the balm just five days ago. In that time she had transformed from a prudish student at the Royal Natawe College to a rampant naked slave girl. She was finding it difficult to resolve her new identity as a slave with her previous privileged upbringing, and switched between aspects of both personalities.
"The sun glints off of those gorgeous peaches beautifully, don't you think?" said Ursula. The slaves were ordered to lather each others' skins with oil each morning to protect them from the sun. This oiling gave a beautiful shine to the wonderful buttocks that were pumping away in front of them.
Ursula surprised herself by the way she was discussing a naked girl's bottom. The aphrodisiac was clearly affecting her more than she had realised. She knew she should be trying to work out a way to gain her freedom. But the aphrodisiac kept making her mind wander onto other subjects.
The naked black girl in front of Ursula continued to pleasure herself, moaning gently as she trotted.
"All that wanking is making her sweat," said the beautiful N'Fala. "Look at the droplets of perspiration running down her back, and then down her bum cheeks."
The black girl paused in her self-pleasuring to scratch her bottom. As her hand moved away, the buttock wobbled a little. She went back to masturbating. Ursula and N'Fala sighed.
"I'd love to spank those delicious peaches," declared N'Fala. "Imagine how they'd bounce as you walloped them."
Just then, the girl whose backside was the object of their attention found release. She moaned loudly as she hurried on tiptoe during her long orgasm.
"Christ, look at the way her buttocks clenched when she came," said N'Fala. "That was the best part of my day when I was on the chain behind her. I couldn't take my eyes off of it."
Ursula started to breathe heavily. Her nipples were hard. The beautiful black bottom in front of her had set her on course, and there was no turning back. She put her hands to her pussy and found her clitoris. She started to pleasure herself, flicking her button in time with each step.
"Although I must say, the sight before me right now is just as delicious," said N'Fala. "Your bum is so pert and your skin so delicate. I'd never seen a naked white girl until I met you."
Ursula stopped talking and listened to N'Fala's description, which reinforced her nudity and the fact that she was publicly on display.
"Each of your buttocks has the most gorgeous dimple," continued N'Fala as the bare white girl continued to rub. "And there's a delightful wobble as you step."
The naked British girl felt a playful, but quite forceful, slap against her backside as she masturbated.
"And when I slap it hard, your bottom clenches so tightly," said the black girl. "A bare white bottom, exposed to the world."
She felt another slap and heard N'Fala giggle. That was all that Ursula could bear. She exploded loudly and shook as she publicly orgasmed.
"I'll be back with you in a few minutes," giggled the black girl.
Ursula could hear her friend's rapid breathing and moaning and felt the chain jiggle as N'Fala began to fiddle. She turned round to get a delicious glimpse of N'Fala masturbating herself, and gave her a quick wink before turning her attention back to where she was stepping.
Before long her friend on the coffle moaned loudly. This was followed one after the other by the slave girls chained behind her.
******
The coffle had a strange social order dictated by the way the slaves were chained, one after the other, in a line. Each naked girl would only converse with the one in front or behind, so that was the limit of socialisation.
At night, when the end of the chain was attached to a stake hammered into the ground, the girls would have just had their evening basting with the aphrodisiac, so they would only be interested in rutting with each other until they fell asleep. No time for conversation!
As a result, N'Fala and Ursula did not know the names of most of the other women. N'Fala had nicknames for the other girls that they never conversed with.
"The girl in front of you is 'lovely bum'," said N'Fala as they hurried along the road. "The slave in front of her is 'lizard tongue'. She gave me a fabulous licking out on the night before you joined the coffle."
"What's your nickname?" asked Ursula as she trotted along, aware that her bare breasts were bouncing and giving a splendid show to anyone walking past.