A wild ride in the backdoor.

The cars started one after another and sort of bumped into each others regularly. Each time the guy's dick pushed deep in Clark and Mary's ass, making them moaning through their gag. Mary was already used to it and was having full fun from it, she was just disappointed to still be a virgin despite all theses cocks she got. Clark was getting her first anal, and despite being a slut it was quite a surprise. It took time for her to really appreciate it. The girls noticed after a moment that their car was now alone, all of the rides having taken a different road, and were now side by side. The guys immediately started to fuck their girl harder, making the later muffled cries out of pain and pleasure. Mostly pleasure for Mary. The harder they pumped their dick into the girls, the faster they got. It started to be a race, and Mary was first. He was pounding her so fast and hard that she finally came and the shacking and twitching of her body made the guy come too. Loosing their rhythm and pace, they lost few places when Clark and two others passed them. Having a harder time to get their speed back, Mary and the guy arrived sixth, when Clark and her rider arrived first.

They got freed from the clamps on the floor and the gag and joined a man waiting for them.

"Good job for the first and second place, gentlemen !" Said a man at the arrival. "For that you get a collar of control, have fun with whoever you give it to !"

With that, the man gave them a collar with a leash.

"What about..." started to say Clark, when she suddenly felt something put around her neck. "Hey ! what are you..."

"Shut up, **** !" Ordered the guy with her.

Clark was about to say more, but she just opened her mouth and stopped there, she couldn't disobey her master. She may be a low level demon, it was insulting for her to be treated like this.

"What a great tool ! I love it !" shouted the guy. "Come now, ****, I love your piercing on your lips, let's gets you few more."

Mary watched Clark leave with one of the guy and was about to go after them, when the man who gave the collar stopped her.

"Sorry missy, but since you and you there were lasts, you'll have a penalty." He said, giving the two guys with them an 8 inches long butt plug.

"But Clark is leaving !" Mary started to say when she felt something pressing again against her ass. "Awww ! Don't hurt Mary ass !"

But the toy went all in and suddenly inflated, stretching her butthole.

"Here it is ! Come now, we will go find your friend." Said the guy that now sealed her ass with the toy.

"Really ?" Shouted Mary, happy.

"Sure..." He told her.

While the girls were having fun in the ride, Mai was feeling more and more bloated. Her nipples were soaking her dress and she needed to relieve herself soon. She looked for some restroom, but she just managed to walk through a pick-nick park were she couldn't wait any longer and stopped to push what was inside of her, out. It wasn't painful, quite the opposite in fact. As she was on her butt, leg spread, an egg the size of a fist pushed out. With just that, she almost got an orgasm, which happened with the second. The feeling of getting out theses colored spheres were unnaturally good, she wanted more. So, she pushed and got another orgasm from laying another one... and another one... and another one. She lost count of her orgasms and egg laying when a black girl around her age came and grabbed her by the arm to lead her away. Looking back, two other girls collected a few dozen eggs on the grass. She didn't really care to be separated from her kids, but she kind of wanted to see how they would look like. Her pussy had expelled so many of theses things, it was constantly gaping and drooling.

Mai didn't say a word on the way to a building where the girl led her.

"What... am I doing here ?" She asked, once inside.

A woman came into the room and led her further into the building without a word.

"I have to find my friends..." She said to the woman.