“Next year I’m going to work at McDonalds for my summer job,” Anna said. “They fuck you up just as much, but at least it’s not as exhausting.”

May and Rin murmured in agreement. The girls showered before their shift, postponing the moment they have to came to the hall of the swingers club. It wasn’t that they didn’t like sex, but being the warm-up and group helper girls, they just had too much of it every day.

“Okay...” May said in three minutes, and they walked out of the shower into the hot drying air, their arousal boosters glittering in the dim light. A dozen distinctive yellow thumb-sized circles on each of them, in easy places like forehead, shoulders, hips, chest, back, knees ... So at least one is always accessible, regardless of the girl’s current pose.

In the beginning of the summer job assignment, when they just got the boosters, they of course joked around, caught each other unprepared and pressed a booster without warning, making the girl so turned on that she assauted nearby people, craving for sex, just any sex ... They’ve long since given that up, of course. They have been turned on too many times during the day to add more to their friends on their own.

Dry and pleasantly warm, they came into the hall, all naked and barefoot, as they would be for the entire shift. They kissed carefully, not touching each other’s boosters, and parted. Each went to her place - May and Rin to help the couples warm up, Anna to walk around alone and wait for newcomers.

Today was a quiet early evening, so there were no more than twenty guests in the club. There will be much more in a few hours.

May smiled as she entered a room without doors with a large bed on which two naked couples were sitting awkwardly. The newcomers, she could tell at a glance. They want to swap partners, but are too shy to start. That’s the warm-up girl’s job.

“Hiii!” May cheered, jumping into the bed between them. “Why so tense? Let me help you!”

They were young and attractive enough, and her shift was at the very beginning, so she didn’t need a booster to get aroused. She began kissing and caressing the men’s cocks and the women’s breasts and pussies. Soon the couples relaxed and joined in.

After a few orgasms, May managed to pair them off properly: one guest took his friend’s wife from behind, another lay down under the first one’s wife and thrust his cock into her mouth. May assisted both women with her mouth and fingers. Five minutes later, all four reached orgasm almost simultaneously. May kissed them all and left.

As she walked down the hall, she heard the familiar moaning of Rin. Rin did not need her boosters yet either. May looked through the open door into another room with a bed. Rin was sitting astride some guy’s face, covering him with her pussy, and another guest was fucking her in the ass. Another woman next to them was fingering herself, highly aroused by the sight, preparing to be the next to be fucked from both sides.

An hour later, the girls met in a hallway. They kissed, sharing the taste of cum on their lips. Anna reported that there weren’t many singles today, but most couples preferred threesomes and orgies instead of changing partners. Rin was disappointed that so few wanted to have anal sex with her today.

“I’ll meet the new guests in the hall,” Rin said.

Anna and May nodded and walked into the large room where two women were moaning loudly as they were gangbanged by twenty men. Anna and May began to help the men in the line maintain their erections. From time to time, one or two of the men would fail to hold on and cum in the girls’ mouths. No one complained. By lunchtime, the girls had usually swallowed so much cum that they did not need to eat.

When Rin saw the new company entering the club, her heart dropped. She knew them. Five young men who liked to tease and abuse the girls. They were careful not to break any rules, so they weren’t banned from the club, but they stayed on the fringes.

For example, they never came with their women and rarely joined other companies. It wasn’t exactly forbidden to fuck only the warm-up girls, but the custom was to use the girls only for the warm-up, giving them enough time to rest and change companies. These men loved to take a girl and fuck her non-stop for a couple of hours.

There were no limits to the use of the arousal boosters, as they did not harm the girls’ health, but these men did not give the girls a chance to act on their own. They kept the chosen girl on the booster all the time, driving her almost crazy with desire and powerful orgasms.

And today, Rin was theirs for next few hours.

She kissed each man on the lips and led them to an empty room. She crawled onto the bed and lay down on her stomach with her bottom facing up. The next thing she felt was a finger pressing the booster on her sacrum and she was engulfed by burning arousal and lust for unlimited sex. She moaned happily as the first man thrust hard into her ass. She spread her legs wider and stuck out her tongue, eager to suck the second man’s dick.

When she came several times, her arousal began to fade, but they turned her on her back and hit her booster at her belly button. And Rin desperately begged them again for more sex, and they fucked her in all her holes.

Two hours later, Rin nearly couldn’t move. She lay limp on the floor, breathing heavily and twitching with aftershocks from multiple orgasms she had lost count of. The company left, chatting and laughing merrily. Rin lay there for a while, sobbing softly, then slowly got up and went to take a shower and drink some water, then returned to work with the guests.

On the third hour of her shift, Anna encountered a group she found extremely unattractive. Their bodies seemed okay, and they were clean ... But maybe there was just too much body hair, or too offensive body odor, or some manners ... Both men and women. They obviously didn’t like each other either, because they couldn’t get turned on by each other. But somehow they wanted to stay together, so...