They have another session.

The next day Karen kept an eye on her neighbors. Everything seemed normal, they chatted on the lawn and flirted openly as they usually did. They were very loving, and Karen didn't want to break them up. She just wanted to have some fun.

It also seemed that Mrs. Sawyer hadn't figured out her husband's problem, either. They were a great couple, always honest with each other, and Mr. Sawyer worked at home, so there weren't many opportunities for people to try to fool him. It was impossible to say how long he'd had AGS without anyone noticing. It was also impossible to say how long Karen would be able to keep this going before someone did find out. She had to take advantage of the opportunity while she could.

As soon as Mrs. Sawyer left to take the kids to soccer practice, Karen headed over to her neighbor's house. She peeked over the fence and said, “Hi, Mr. Sawyer!”

“Karen! Are you here for more endurance training?” he responded eagerly. His tone was still friendly, but he was openly looking Karen up and down in a way he never had before.

“Absolutely! I'm actually a licensed endurance trainer, so I take my work very seriously.”

Mr. Sawyer became a little more deferential at hearing that she was licensed. He waved for her to go into his house, opened the door for her, then followed her inside. Karen could tell he was checking out her butt as he followed her in. She'd worn her tightest white shorts to show off her lush, round ass.

“You're doing very well, Mr. Sawyer. I think today we can actually skip ahead to the part where you're naked.”

“Awesome! I mean, I'm glad you think I'm making progress.”

The older man eagerly undressed and sat down while his hot, teenage neighbor started the music. She began dancing, running her hands through her thick, red hair. He watched her large breasts sway in her tight, orange shirt. He quickly realized that she wasn't wearing a bra, and he started jerking off without her even asking him to.

Karen was in heaven. She could tell he wanted her, and she loved that. She danced closer to him, shaking her big tits in his face and making him moan.

“You're doing really well, Mr. Sawyer!” she said without slowing her dance. “It's time for the next step. This will really challenge you, making you work extra hard to control your arousal. Start describing how my dancing makes you feel and what it makes you want to do. Don't hold back, you can reveal everything to a licensed endurance trainer like me.”

The muscular, older man almost went cross-eyed. “Oh, Karen. Watching you dance makes me so horny! Your breasts are the best, better than any I've ever been able to touch! I wish I'd met a girl like you when I was a teenager! You're the hottest girl I've ever seen!”

Karen smiled, but slightly sternly. “I'm not a girl. I'm a woman. A mature, adult woman.”

“Yes! You're a woman! An incredibly sexy woman! Honestly, it drives me crazy that I've never been with a woman like you. You're so much hotter than my wife! Watching you swing your amazing tits as you dance is driving me crazy! I want to suck on them so badly! I bet you have amazing nipples! I've never held big breasts like yours, and I want to grope them and fondle them and kiss them and suck and suck, oh god your tits are so hot!!!”

He kept jerking as Karen turned around and danced with her back to him.

“Oooohhh, and that ass! It's so good! I just want to bend you over the living room table! I want to bury my face between those cheeks, then shove my big cock deep into your... tight... pussy... and... and... uuunnnggghhh!”

Mr. Sawyer came like a geyser. Karen watched his orgasm intently, memorizing every detail. When he finally finished, she ran her hand over his cheek to calm him.

“Well, you didn't last very long today, Mr. Sawyer. That's okay, this is the first day of the new regimen, so that's normal. We'll have to practice a lot more, though. I'll see you tomorrow. Bye!”

Karen rushed back to her house before her neighbor could speak. She wasn't trying to be rude, but her own needs were getting urgent. Once back in her bedroom, she took out her phone and looked at the naked pictures she'd taken of him the day before. She opened her shorts and fingered herself thinking about how much fun she was going to have with her sexy neighbor.