Yes, he's got to learn this

Matt didn't spend all of his time just watching chatterbate videos. He'd read enough to know that (a) girls like having their pussies eaten; and (b) guys who suck at eating pussy not only don't get the girl, they don't get any girl because girls share the info. Yet, he had a pretty good idea that what went on in porn vids wasn't exactly training material for satisfying a girl... it was all about acting for the camera.

"Lie down on my bed," he said. "I want to eat you but you need to help me know what feels good or bad. You won't hurt my feelings... just be honest."

"You sure you want to go through with this? I can do the blowjob thing again if you'd rather."

Although he'd had two orgasms in the past hour and a half, he was definitely ready for another. He looked at his sister's pussy... and saw moisture dripping from it and knew the answer. "I'm absolutely positive. Now relax and go with the flow."

Karen sighed, leaned back on his bed, and spread her legs giving him his first close-up look at a real live pussy as opposed to one of the video variety.

Honestly, he wasn't sure how he'd react to this. After all, he was right down where she pissed from and not to far from her asshole. But she'd swallowed his load right out of the hole he pissed so how could he shirk. Besides, he might not trust the vids but he knew that guys did this... and that girls liked it. Nothing was going to stop him now.

He lowered himself carefully, then dipped his tongue into her slit.

He had to remind Karen a few times to let him know what was good and what wasn't, but before long, she was getting into instructions... a little higher, a little harder... and he didn't think she was faking the panted noises she was making.

Finally, she let out a scream as her whole body spasmed. "Damn, Matt. That was amazing. But, I think you need more practice. We'll have to do this again."

"Definitely," he said. I--" He cut himself off when he heard footsteps in the hallway. "Damn, I think we woke mom."