Earth had gotten to a point where no one trusted anyone. By 2075 every government had collapsed, and war had become a new normal event. People fed up with life on Earth rapidly developed the technology to escape and took anyone who wanted a new life with them.

People who were fleeing Earth had quickly colonized Mars by the year 2150. Although Earth was recovering from the damage caused by greed and corruption, many people continued to flee. New propulsion technology reduced the trip from months to weeks. Several city-sized habitats quickly developed. More than a few farm community habitats popped up all over the red planet.

The only requirements for staying on Mars were the sanctity of the US First Amendment, the belief that all people are equal and free, and the understanding that any act of violence would not be tolerated. Anyone violating these rules would be sent back to Earth.

Life on Mars led to one other side effect. It became apparent that the combination of breathing the purified atmosphere inside the dwellings on Mars and the absence of Earth-like sun cycles increased people's desire to procreate, which led to a burst of births. Birth control became mandatory.

One other side effect, largely caused by a limited female population, was the desire to engage in sexual trysts with multiple partners at the same time. However, not everyone was willing to participate, and quite a few couples sought a second male partner. To prevent potential problems, a new consent system was quickly developed.

Anyone willing would wear a small device everyone called a cowbell around their neck on the day and time they were willing. A couple wishing to be joined by a third or more partners would then lead the person or individuals wearing the cowbell back to their dwelling or anywhere they desired.

The cowbell device was a product of science gone wrong. The wearer willingly put on the cowbell, but the device's AI soon made it addictive and impossible to remove. Everyone knew this could happen, but nobody seemed to care.

Once a person placed a cowbell around their neck, they were unable to refuse being used for any form of sex. The cowbell removed all inhibitions the wearer had. It became common for a cowbell wearer, known as cows or bulls, to be seen on their knees sucking a man's cock or eating a woman's pussy while their partner was doing the same to the cowbell wearer. People would bear witness to all kinds of sexual acts taking place in public. Places were quickly added to the habitats just for public sexual displays. The cowbell compelled the wearer to gather in this part of the habitat.

The Martian authorities quickly realized that it was cheaper to just make a violator of the sacred rules permanently affix a cowbell to them than to send them back to Earth. Sex slaves became as commonplace as breakfast foods.

Life on Mars was beneficial, especially for Harriett. Sitting on the nightstand was her cowbell. Her co-worker gifted her the device after she expressed her desire to engage in sexual activities, despite her fear of doing so. She didn't realize her co-worker was paid to recruit Harriett and had given her a new type of cowbell. He gave her the cowbell and deceived her by claiming that he often wore one himself.

The truth was he never wore one. He told her the whole experience was like being out of your body, watching yourself do things you never thought you could, and you can't refuse doing them. It was another lie, but he could tell that Harriett was beginning to believe him. He felt he had to warn her about the addictive properties of the glowing gem and advised her not to handle the gem too much.

Harriett is a shy but lovely girl who was born on Mars eighteen Earth years ago. Martian years were longer, but humans still aged at the same rate as they did on Earth. Therefore, people expressed their age using Earth years. She had really long brown hair and deep brown eyes. Her body was really petite due to the difference in Mars' gravity and Earth's. On Mars, she only weighed forty-two pounds. On Earth, she'd weigh closer to one hundred and five pounds. She has a twenty-inch chest, a sixteen-inch waist, and twenty-inch hips. She stood almost six and a half feet tall. For a Martian, she was considered short. She always joked that if it wasn't for the two bumps on her chest, her pussy, and her shapely ass, she might be mistaken for a boy.

Despite Harriett's beauty by anyone's standards, she felt lonely. Her parents had permanently returned to Earth. Harriett wasn't physically capable of withstanding Earth's increased gravity. She just had to remain. She had a fantastic job and plenty of money, which allowed her to live an extremely comfortable life.

Harriett fingered her cowbell chain as she sat at her nightstand. She decided tonight was the night she would put the necklace on. She had dressed as sexily as she believed possible. She wore a skirt that barely covered her ass and split up both sides, all the way to her belt. She put on a sheer blouse that revealed her decently sized nipples. Next, she wiggled into a pair of crotchless fishnet hose. She even shaved and waxed her pussy. She put on a pair of skimpy crotchless panties.

Her fingers traced the gem of the necklace, and she felt the cowbell calling to her to put it on. Her co-worker told her that the cowbell would eventually compel her to put it around her neck if she kept touching it. Harriett found it impossible not to touch the necklace. She was no longer in control, and finally she gave in to its call. She picked it up and snapped the clasp behind her neck. She felt her body change. Her tiny boobs grew three sizes. She felt her clit grow and her pussy moisten. Her nipples grew hard. Without thinking, she unbuttoned her blouse to further expose her new cleavage. She stood up and removed her panties. She changed her shoes into a pair of high-heeled, 'fuck me' pumps she had bought but was reluctant to wear. She redid her makeup, putting on bright red lipstick and glittery forest green eye shadow. She splashed on a perfume her colleague had given her. The scent turned her on more.

She looked at herself in the mirror, turned, and left her dwelling. She felt herself take on a sexy walk as she headed to what was considered the cowbell district. She saw a couple there and was compelled to walk toward them. The man took his hard cock out and was stroking. His partner stood next to him. As she approached them, the female partner walked up to Harriet, took her arm, and led her to him. She whispered in Harriett's ear, "Suck his cock, cow." Harriett didn't need the woman to tell her what to do. She was already drooling to get him in her mouth.

Harriett knelt down and took a man's cock in her mouth for the first time and started sucking him. The woman positioned herself behind Harriett, lifted her hips into the air to expose her backside, and began spanking her. Each time she struck, she'd say, "Good cow, suck him. Swallow his cock, cow."

Harriett had no choice but to comply. Didn't matter, because Harriett felt herself starting to thoroughly enjoy what was happening to her. The woman ran her hand between Harriett's legs and said, "Fuck, honey, the cow is thoroughly enjoying your cock."

She bent over and whispered in Harriett's ear, "I am going to eat your pussy, Cow." Harriett spread her legs to accommodate the woman's head.

Harriett felt her pleasure increase as the woman skillfully ate her pussy. Soon she heard the man groan and say, "Ohh, fuck, I am going to cum. Get ready, cow."

Harriett couldn't stop even if she wanted to. She heard the man grunt and felt her mouth fill for the first time with cum. She quickly swallowed each time he ejaculated more semen. When he finished, the woman positioned Harriett on top of her and guided Harriett's head toward her pussy. She moaned, "Eat me, cow. Fuck her, Honey. I want to taste her on your cock."

Harriett felt the man's cock start to spread her pussy open. She heard him exclaim, "Fuck, the cow is a virgin." Harriett felt the tearing of her hymen as the man thrust deeply inside her. She never felt any pain, because the cowbell converted the pain to pleasure. Harriett continued to eat the woman's pussy. Harriett thought to herself, "My co-worker is right. I have never had sex before; now I am acting like I am a slut."

Between the cock in her pussy and the woman sucking on her enlarged, swollen clit, Harriett came hard. She came so hard that her fluids soaked the woman's face. Harriett came a second time as she felt the man slam his cock inside her and fill her with his cum.

He pulled out and let his cum pour out of Harriett's pussy into his partner's mouth.

The woman pushed Harriett off her and smacked Harriett's ass as she said, "That was a wonderful cow. Maybe we'll see you again."

Harriett just lay there and actually mooed. The couple laughed and walked away. After a minute or so, Harriett stood up and felt the cowbell start to fall. She managed to catch it before it hit the ground. As her hand closed around the device instead of the necklace, she felt its call once more. The call was as strong and irresistible as ever.

Harriett's hands involuntarily clasped the necklace and placed it around her neck. As it locked in place, Harriett felt her arousal increase, and she thought, "I love this necklace." Harriett was hooked and fully under the device's control. Once again, she felt her breast grow. She looked down at a huge pair of breasts. Her blouse barely covered them.

It didn't take long for her to get grabbed. This time it was two guys. Neither of the two men was worth looking at, but she couldn't deny either of their requests. She stood there as one of them tore her clothes off and snickered, "Cows shouldn't wear clothes. On your knees, cow."

Harriett quickly complied.

One man started beating Harriett's face with his hard cock while the other man grabbed her hair. The person grabbing her hair barked, "Open your mouth, cow." Harriett did as she was told. The other man forced his penis into her mouth and began to thrust against her face. The man barking orders roughly grabbed her pussy and lifted her ass in the air. Without warning, Harriet felt his cock spreading her sphincter. The gem quickly transformed her pain into pleasure while the man barking orders roughly penetrated her anus.

As her pleasure increased, Harriett quickly lost all sense of herself. How quickly she was becoming addicted to the glowing amulet around her neck was astonishing. She felt her breast hanging heavily beneath her. The order barker reached around her and grabbed her clit. It was now big enough to be grabbed by two of his rough fingers.

The man laughed and remarked, "This cow has a small penis and a tight vagina."

The man fucking her face grabbed one of her breasts and squeezed. He proclaimed, "The cow has milk too." The evidence was the white puddle forming below Harriett.

The order barker said, "I heard there was a new cowbell that makes the wearer a full-service sex toy. Fuck I feel her clit growing."

Harriett heard the AI voice in her head: "Welcome to your new life, cow."

The two men finished with her and left her lying on the floor of the habitat. Once again, Harriett felt her body change. Her clit was growing and changing. She looked down, and her clit had changed shape and looked like a decent-sized cock. Harriett wondered how big she would get. Would she ejaculate like a man? She reached down and grabbed her cock/clit. She smiled because it was more cock than clit. Her pussy was still there, but she felt a pair of balls too. Her breasts had grown larger once again.

Some of her questions would soon be answered as she was grabbed by a lone male. The man dragged her into one of the many rooms around the habitat. He told her to sit. She quickly complied. Her newly formed penis was erect. The man dropped to his knees and began stroking her cock and clitoris. Harriett moaned as the pleasure she felt increased.

The man looked at her and said, "I am going to take this cock in my mouth and suck it. If you are capable of cumming, cow, you won't tell me. You will bend me over and fuck my ass when you're finished, cow. You will spank me while you do it.

Hariett nodded and replied, "As you wish." She grabbed his head and forced it down between her legs. The man almost gagged as Harriet's cock/clit filled his mouth. Harriett smiled as she heard the man moan as she dominated him. Not sure how, but Harriett instinctively knew the man wanted her dominance.

Harriett grabbed his ears and held his head as she ejaculated for the first time. When she was done, she pulled down his pants and spun him around. She rammed her still-hard cock/clit up his ass without thinking. The man yelped as her balls bounced off his ass and her hand landed hard on his ass. Harriett pushed his head to the floor as she fucked another person for the first time. It wasn't too long before Harriett heard the man grunt. The man ejaculated onto the floor. A couple of minutes later, Harriett unloaded in his ass. Harriett grunted and pushed the man off her cock/clit.

She stood up and put her heeled foot on his back. She bent over and growled, "Are you satisfied, fucker?"

The man nodded and said, "I am Mistress."

Harriett felt her body return to her normal state. It was morning on Mars, and she had to get ready for work. She kept the necklace on her neck.

Harriett smiled as she realized she had become exactly what she wanted.