Mei, a stunning futa sister with a devious glint in her eyes, has always been a thorn in the side of her brother. Her athletic physique and charming smile make her a magnet for attention, especially the kind of attention that rightfully belongs to her brother's girlfriend, Akira.

Akira, the apple of the brother's eye, is a petite beauty with long, raven hair and delicate features. Unbeknownst to her, Mei had a secret crush on her for a long time, growing more and more resentful of her brother's close relationship with Akira.

One fateful day, while the brother was away on a business trip, Mei saw her chance. Disguising herself as a delivery person, she made her way to Akira's doorstep, her heart racing with excitement and anticipation. As soon as Akira opened the door, Mei locked her eyes with her beloved, a wicked smile spreading across her face.

"A message from your boyfriend," Mei purred, handing over a note that read: "I'll be home late tonight, my love. But don't worry, I'll make it worth the wait."

Mei's eyes gleamed with triumph as she watched Akira's face flush with desire. She knew she had the upper hand now, and the thought sent a thrill through her veins. As Akira closed the door, Mei couldn't help but let out a low, rumbling chuckle - a sound that would send chills down Akira's spine.

Little did Mei know, her actions would set off a chain of events that would change the dynamics of their lives forever. But for now, she basked in the thrill of the conquest, eager to see what Akira would do next.