Teach Sarah some patience

Adam stopped what he was doing. He grabbed Sarah around the waist, turned her around and looked her over. And he liked what he saw: Fit thighs, her exposed round and bubbly heart shaped butt, her thin waist and a slightly muscular back. Her long blonde hair was beautiful.

"Ah, fuck, Adam what are you doing?"

He used his body to straddle her legs, his huge shaft now nesting between her ass cheeks. Her back side was a sight to behold. "I am teaching you a lesson in patience and submission my dear sister. You do not demand of me to fuck you. I am in charge here."
Adam was by now completely full of himself and bursting with confidence of his cocks prowess. "You are my little slut, and you should feel happy that i am even considering to bless you with my big cock." And with that Adam slapped his sisters ass checks.

"Aaaaah. What the fuck?"

Adams continued to slap her, more playfully than with ****, though her ass cheeks started to take on color quickly.

Sarah's body squirmed under her brothers treatment, as the slaps further increased her arousal. She just couldn't take it anymore and whimpered: "Please? Please, Adam? Please fuck me..."

Adam grinned. "Okay, because you ask so nicely!" Adam re-positioned himself and turned Sarah around again as well. Sarah now lay with her back on the bed. Adam was in front of her, and he moved his big cock closer to her private parts.

An author's note: On the topic of begging and who is in charge.
Most author's on chyoa surely wish for some appreciation as well. So if you do enjoy the story, please take charge, and press the "thumbs up" button! Don't make the author's beg for it ;-)
If you have any suggestions on what you would like to see, or even on what things you did not like: Feel free to leave a comment. The story also has a topic on the forum. Thank you!