"Why?"

Taylor stroked Zack's hair with her free hand and gave her brother another soft kiss as she gently squeezed his softening penis.

“So.” Taylor's thumb rubbed his sticky frenulum.

"Ooh-oohh!" Zack said. A new round of aftershocks betrayed how much he enjoyed it. Her thumb and that low, husky voice in a satisfied tone. That's all he needed.

"Would you like me to tell you what I like, little brother?"

Zack looked into Taylor's eyes, bewildered. "Why?" he asked.

"So you know what I like?" Taylor said, a teasing lilt at the end. "Asking is good practice with a new partner. And touching the way they say they like. Slowly trying it out. Learning what it looks like. What it sounds like. What it feels like when they're turned on."

"I meant, why did you do this for me?" Zack asked.

She squeezed his penis. "Because you've been using your penis like a boy who's just starting out," she said. "It's time you got to know your equipment better. So you can ask for what you like. So you can be a better man when you share it."

Zack took a deep breath. "Just being a big sister?" He looked into her eyes. "There's something else."

"For real?" Taylor rasped. "Zack, you've grown up into a beautiful, sexy man. You're gonna have girls jumping all over you. Hell, boys if you want. With what you've got going for you, I want you to be a sex god. I couldn't stand it if you ended up as an arrogant dick." Her mouth twisted. "Or kept being a careless heartbreaker like you were with Lisa."

Tears formed in Zack's eyes. He blinked, sending them down his cheeks.

"I love you Zack," Taylor said. "It's time to grow up. Fast."

Zack swallowed. "Okay," he said, nodding. "How do I ask you what you like?" he said.

"Just a sec, don't go 'way," Taylor said.

She was back in twenty seconds with a damp washcloth and a dry one.

"Let me take care of this for you," she said. Taylor wiped Zack's cooling seed off his belly and the tip of his cock. It twitched a little. Not dead yet.

"What do you like?" Zack asked.

"Well, that's a serious question," Taylor said, her husky voice resonating inside him. "First. I'd like your sock. So we aren't interrupted."

"Sorry," Zack said.

"Sorry not sorry," Taylor teased. "Sock."

She tied Zack's sock on the outside doorknob, closed the door, and stretched out nude on the bed beside her brother.

"Ask me," she said.