Anna accepts his answers

"...alright..." Anna lets out a sigh of satisfaction as she comes to terms with her brother's declaration.

"'Alright'...?" Billy repeated, breathing a little easier that his younger sister didn't want to press things any further. He inwardly cringed at the dominant smile that was spreading over Anna's face. He would really have to think about how to repair the damage to his reputation after this. But that was a problem for another time, he noted as he squirmed beneath his sister's annoyingly attractive figure. He could smell her arousal with her thick thighs and moist pussy inches from his face, just barely covered by her tiny blue shorts.

Billy shook such thoughts away and gave Anna the best glare he could muster, determined to re-establish himself in her eyes. "So are we done here? Are you going to get off of me now?"

"What's the matter? Can my big brother not push his teensy little sister off all on his own?" Anna giggled, obviously not intimidated by his attempts. The younger girl brought her finger to her lip in an uncharacteristically flirtatious way. She squeezed her legs ever so slightly, asserting her dominance even more by making it clear to Billy he was not going anywhere unless she allowed it. However, that action also sent another ripple of pleasure through her entire being, and she was reminded of the **** need that had brought her in here in the first place.

Still, she wanted one last show of power over her once proud brother. Anna put a hand on either side of his head and leaned down, and Billy's vision was filled with Anna's large chest as it hovered overhead. He could no longer deny what was right in front of him, now that it was literally right in front of him, which is that Anna's boobs would obviously one day grow to rival their mother's "What's the magic word...?"

Billy gulped, using every ounce of his willpower not to look at his sister's impressive rack. But that left him with nowhere else to look but her eyes which were sparkling with a dominant pride that made him involuntarily tremble. "Anna... please...?"

Anna nearly came on the spot as her brother begged her while she sat atop of him. Catching herself before she would moan, Anna simply let out a pleased hum as she smirked down at her beaten brother before sliding off of him. She still had some questions, but the important ones had been taken care of. She was satisfied with Billy's answers, knowing that he would never have confessed these things to her otherwise. That, coupled with the fear and embarrassment on his face had convinced the younger sister that her athletic and powerful boxing champion brother had always been afraid and intimidated by his younger sibling. After witnessing that and the way Billy had trembled beneath her, Anna could go and give herself release, confident in her own strength and ability.

Billy watched his sister leave, her hips swaying in a way he was certain they had never done before. He could not look away as she vanished into the shadow of the hall, and dared not move until he heard Anna's door close. Finally, he collapsed back onto the bed, his hands covering his face in exasperation.

Billy could not believe what had become of his life. Both his mother and his sister believed that they were superior to him when it came to boxing. Hell, he had practically just confessed to his sister that he believed she was superior to him in everything! How was he going to turn this around...?

While those thoughts rattled around in his brain, a musky scent invaded his nostrils. Taking a deeper whiff of it, Billy realized just how aroused his sister had been at the thought of beating him. He rubbed his jaw, still sore from her final blow. He vaguely remembered how he had spun around after it before dropping at her feet with his lights out. What must that have looked like? Had his sister been concerned, or had she looked down at him with that same proud smirk she had held on her lips as she walked away? Walked away with her hips swinging hypnotically, that round butt of hers wobbling slightly as she moved...

"Fuck!" Billy shouted in the loudest whisper he dared before standing up and marching to the bathroom. He could not believe what he was doing as he jerked himself off to the thought of his sister standing over him with her hands on her hips, smiling down at her defeated, **** brother. He had never once thought of his sister in this way before, but that only made this moment all the hotter when he did. After seeing how she filled out that tank top, seeing her in those sinfully small shorts, thinking about how her whole body jiggled as she moved, and picturing that single punch that sent him to bed for the night...

Neither sibling knew it, but they both came at the exact same moment that night as they imagined Billy being KO'd by his little sister.

When Billy shamefully returned to his room that night from what was probably one of the greatest orgasms of his life, he had just enough wherewithal to think that he had no idea where his phone was before deciding it could wait and collapsing back onto the bed that still smelled like Anna.

The next morning when Billy awoke he was **** to get out of bed. The thought of facing his mother and sister after what happened last night and what he did after Anna had visited him filled him with dread. He wasn't sure how long he stayed there, but at some point he heard the doorbell ring. He stayed motionless in bed, hoping either his mother or sister would answer and that he could avoid seeing them a bit longer. Much to his annoyance, after about a minute the doorbell rang again followed by several hard knocks. Unsure if his family was awake, or even in the house, he begrudgingly stomped his way down the steps as the doorbell rang a third time.

I'm coming! Billy shouted as the visitor began to pound the door again. The banging stopped moments before Billy got to the door and he sighed in frustration as he reached for the knob...