Aaron Succeeds

With an effort of willpower, Aaron was able to get his arm to stop working against him. It was his arm, after all - Natalie was likely just panicked and struggling - but it gave him an idea.

Focusing on the sensation of the mouth attached to his hand, Aaron tried exerting his will on the mouth itself and carefully released his grip.

Natalie's scream shocked him, but the panicked need to silence her gave him the strength of will he needed, so that what actually came out of her mouth was,

"Aaron you freak, what the fuuuaaaggghhh..."

It took concentration, but Aaron was able to **** his sister's lips closed, reducing her voice to a fearful whimper.

With more effort, he was able to silence the voice entirely before carefully experimenting with opening his sister's lips and waggling her tongue around. He could feel her struggling against him, but she was just a mouth attached to his body. She was just a part of him now.

He made his sister's tongue stick out, licking its way slowly around her mouth, puckering her lips in a kiss. Controlling her voice took a bit longer, but by closing his eyes and imagining that her mouth was his, we was able to make progress, despite her struggles.

"Hey, babe," he made her say, putting on her sexiest whisper. "I love what you've done to me. You should keep me like this forever."

Natalie's internal struggling doubled as she realised what she was being **** to say.

Aaron looked from his sister's captive mouth to her vacant body standing in front of him. As long as he kept control of her voice, he could probably do whatever he wanted and Emily would be too busy watching television to care.