"Just the hairbrush," she said, while stroking his hair affectionately. She then saw at least a blink from him. The brush could signal two different possibilities.
She made the shower a long one, deciding to shave her legs. The moment she turned off the taps, she heard the door open. She pulled back the curtain to see him with her towel open wide. In the mist she could see he had chosen the long rose-colored nightgown. It was elegant enough that he didn't look too ridiculous, but of course, she knew he felt ridiculous— and turned on.
She allowed him to dry her body from toes to shoulders, and she allowed herself a pinch of one of his nipples as he bent over. She took the towel from him—"Wait for me in the bedroom"—and worked on drying her hair herself.
He was sitting on the edge of the bed, waiting. In a line beside him was the brush— wood-handled and eminently suitable as a paddle if one chose—the plug and lube, a towel, a red ribbon, and a thick coil of pink nylon cord.
She stood naked in front of him, hands on hips, remembering to put herself in a position of power, and reviewed the items and him for a long moment. "Fine. Let's get you settled first, so I can begin relaxing." She lifted her eyebrows and her chin slightly in a slight bob he understood at once. He turned and got on all fours on the bed, facing away from her.
She reached out and enjoyed a moment of caressing his ass through the satiny nightgown, then said sternly, "Pull it up." After he lifted the gown over his hips, she gave one cheek a slap with the back of hairbrush. "Head down, please." He dropped his upper body lower, putting himself into an even more submissive position.
First, the ribbon. She squatted down, and just as a tease, gave his balls a lick. He shuddered and she gave his dick a yank down. "Don't get all excited, now." Around the balls and over the top of the penis she tied the ribbon, having to work a bit to get the bow right from behind. She had to swat him a couple of times with the brush to get his legs wider. The ribbon had been a decoration of sorts and a symbol for them. She had first used it one time when she had shaved him completely down there, because it had looked so bare and boyish. Now she used it often as a sign of emasculation to him when she didn't want the use of his penis.
Next, the cord. She pulled his balls down roughly and tied a knot with one end of the cord around the top of them. The cord served as a leash, mostly. Sometimes she tied it around the base of his erect penis to lead him around, keep him hard, and prevent him from ejaculating. For this night, the balls would do.
Last, the plug. She drizzled lube down the crack of his ass and used the tip of the plug to work it into his tight hole. Teasing him a little, she dipped the plug in shallowly and slowly, before surprising him by pushing the whole thing in. He gasped. "OK, enough of this," she said. "Tonight isn't about you. Turn around." She gave an encouraging tug on his balls with the pink cord.
He quickly, but carefully, to keep the plug in place, pivoted to again face her. He again sat on the edge of the bed, his lips set tightly as he settled down on the plug. She held the brush out. "Get to work, please."
She sat at the foot of the bed, facing the mirror, where she could see them both. He moved gently behind her and began working the brush through her hair, likely relived it wasn't a night he got spanked with it. Periodically, he caressed her upper arms and kneaded her shoulders between strokes, and gave small kisses on the back of her neck that gave her goosebumps.