She takes charge

Sensing his hesitation and refusing to let him ruin a perfectly good orgasm something in Crystal snaps. Maybe it was her new hormones, maybe she'd always had a sadistic streak but she wasn't about to let Josh dictate how they progressed.

She yanked her dick out of his mouth with a loud pop. Josh looked up at her, surprised at her sudden change of heart. His confusion didn’t last long, she quickly rose to her feet and grabbed his hand away from his dripping snatch "you get to cum when I allow it young man" she teased. With her other hand she grabbed his other wrist and, with a strength that took Josh by surprise, she dragged him towards the railing that had, until the fall, had a towel on it. The towel now lay on the floor in a heap. She pushed Josh's wrists between the railing and the wall before gripping them both tightly in her left hand. She quickly snatched the belt from the bathrobe hanging on the back of the door and expertly tied Josh's hands in place. Josh found himself secured in place in a kneeling position in front of her.

She stood back, admiring her handy work as she slowly jerked off. "Now, are you going to be a good girl for me" she teased. Josh nodded, submissively, it's not like he had a choice right now.