Autofellatio

"First, bend over and try to touch your toes."

He did, not sure what the point was.

"You're not too inflexible, good. Now, sit down again and close your eyes, I'm going to see if I can increase it a little further." He closed his eyes, not sure why she wanted him to be flexible.

She started to rub his back up and down, as she did, slowly pushing it forward, stretching it until he was hunched over, but he didn't feel too uncomfortable. Then she slowly straightened him again.

"Okay, keep your eyes closed, this time I'm going to try something else." she said, unbuttoning his pants and taking out his already hard cock. Nice and long, she thought to herself, perfect for this. "This time I'm just going to guide you and jerk you off." She curled her fingers around his shaft teasingly with one hand, her other on his shoulder. "Try and imitate the stretch I did before." she said, and began to softly stroke up and down.

He did his best, weighing himself down with his arms, but she kept pushing him back, making sure his spine curved. Eventually, he was close enough to his own penis that she could act. "Open your mouth." He obeyed without thinking, and she pushed the head of his cock into his own mouth. It felt amazing, to feel the sensitive head being wrapped in lips and tongue while she suddenly jumped from a slow pace to a furious jacking off, and he knew there was no way to avoid cumming.