Mateo's eyes must have closed for just a second, because suddenly she was beside him. Had he fallen asleep on his feet? Before he could articulate a question, Kalista took him by the hand and was leading him out of the weight room towards the showers. Leading him at the length of their arms, so he could still look down and let the movement of her hips mesmerize him as she walked. He didn't feel embarrassed anymore by the way he was gaping at her body; his thoughts were too hazy and disconnected to worry. He was simply living in the moment, letting Kalista guide him. Just following her instructions and enjoying being so close to her.
He did enjoy being close to her, Mateo realized. More than enjoyed it, longed for it. Kalista radiated sensuality, and every minute made him more desperate and hungry for her. He knew this was the wrong reason to hire a fitness instructor, but Mateo couldn't help it: he craved her presence, and he knew from now on the gym would feel cold and empty if Kalista wasn't there.
It took a long time to get all those thoughts through the syrupy haze of pleasure he'd sunk into, and by the time Mateo realized they were both naked, it was when the jet of hot water hit his chest. He couldn't even tell if they were in the men's or women's showers, but that didn't matter now.
The stall wasn't huge, so they had to stand close together... but Kalista came even closer than that, close enough for her nipples to brush against his chest and her scent to surround him. Her presence was all-consuming: she was the only thing Mateo could see, smell, hear, or feel, and he pulled her body against his without thought, without worrying about the danger of mixing business with pleasure. There was room left in his head for nothing but mindless lust.
She kissed him, but then pulled far enough away that she could fix him with her gaze, reach down between them, and grasp his cock. Her grip was firm, but her touch was light and calculated, giving Mateo only a fraction of the stimulation he craved. Still, he'd been painfully hard for so long that her actual touch, even the slightest stroke, overwhelmed him with waves of pleasure.
"Don't cum," she said, and he moaned in protest. Her smile widened. "No. Just stay this stiff and hard for me. It's so fucking hot. Isn't it?"
Mateo could only nod. Her slow, teasing strokes felt so good he couldn't form words.
"Yes. It always feels this good to do what I tell you. To just let me lead and follow my instructions. That's what you're hiring me for, isn't it? To instruct."
"Y-yeah," he gasped, shuddering with pleasure. That he would actually hire Kalista was a foregone conclusion. If he'd been thinking clearly, the conflict of interest would have bothered him. As it was, Mateo couldn't even remember what the words "conflict of interest" might mean.
"Good," she purred. "I'll give the instructions, and all you have to do is follow them. Without thoughts. Without objections. That's so easy, isn't it? Feels so good."
Mateo nodded dumbly at her rhetorical questions, either agreeing or simply bobbing his empty head in time with her expert strokes. Kalista's limber fingers ran down, grasping the base of his cock, sliding back up, pausing at the tip for a long, languorous moment, and then doing it all again.
"You just follow. Follow my instructions. No thoughts. No questions. Follow. Feels good."