It had been a long day at school for the young, petite Japanese schoolgirl. Her name was Hikari, and she had spent most of the day stuffing her face with unhealthy snacks and soda, avoiding using the bathroom. The combination of a naughty butt plug and underwear soaked in scent had made her feel unbearably full and uncomfortable, but she loved the illicit thrill of it all.
Finally, she arrived home to find her faithful domestic slave, a young man named Taro, eagerly waiting for her. He was kneeling on the floor, his head bowed in submission as he presented her with a freshly prepared meal. His eyes flickered up towards her, filled with longing and adoration as she stepped into the room, kicking off her shoes and unfastening the button on her uniform skirt.
"Hikari-sama," he greeted softly, using the formal honorific for his Mistress. "I hope I have prepared your favorite dish."
She smirked, climbing into a high chair like the small child she sometimes felt like around him. Taro handed her a bowl of noodles and chicken, but she barely paid attention to the food. Her stomach was aching too much from being overstuffed with junk. Hikari looked down at Taro, her face softening into a sadistic grin.
"You've been such a good slave today," she purred. "Why don't you go ahead and help me with my 'dirty' work?"
Taro's face flushed red with excitement as he understood her intention. He immediately climbed onto the floor under the chair, positioning himself so that he could comfortably reach her behind. The smell of her soaked underwear filled his nostrils as she slowly began to shift in her seat, grunting and groaning in pain as her full bowels pressed against his face.
"C'mon, Taro," Hikari encouraged, her voice dripping with sultry malice. "Don't make me wait any longer."
With that, she pushed hard, forcing her massive turd out of her tight little hole. It landed with a wet splat on Taro's face, the sting of the warm feces causing him to whimper in pleasure. She repeated this several times, relieving herself completely onto the loyal servant's face as he lapped up every last drop of her filth with his tongue.
"Ahh... so much better," Hikari sighed, feeling relief wash over her. She leaned back in the chair, watching as Taro cleaned up the mess around her and picked up her soiled underwear. "That's a good boy," she praised, reaching down to pat his head.
Feeling a little guilty for using him like this, Hikari decided to give him a treat. She carefully removed the thick butt plug from her ass, its putrid smell wafting through the air as Taro watched with eager anticipation. She held it out to him on her hand, and he eagerly accepted it, taking a deep whiff before placing it gently in his mouth.
"Y-yes Hikari-sama," he stuttered, tasting the mixture of her juices and feces coating the toy.
The rest of the day passed with Hikari alternating between lounging on the couch and using Taro as a human ashtray, filling him up with cigarette ashes, and ordering him around for various chores. As evening rolled in, she decided to let him have some fun of his own. She led him into the bathroom and positioned him on the toilet seat, her lacy panties wrapped tightly around his head as she pressed the cold metal of a chastity cage against his groin. The cage would prevent any release of his ejaculation while she took a nice long bath.
Hikari savored the warm water, letting the stress of the day melt away as she bathed, completely unaware of the mess she left behind for Taro to clean up. When she finally emerged, she found him on his hands and knees, cleaning up the filth she had left behind. She giggled as he looked up at her, his face covered in innocent muck and semen.
"That's my good boy," she cooed. "Now help me get ready for bed."
