'We're going to the movies tonight petboy' read the text, 'I will pick you up in one hour, be showered and dressed. No underwear tonight.'
Mistress hadn't contacted John in almost a week, and he was starting to worry that he had done something to upset her. Apparently she had just been busy after all. John hurried to the shower and resisted the urge to stroke as he cleaned himself, he expected Mistress would spend plenty of time teasing him tonight and the last thing he needed to do was exacerbate the situation by stroking before hand. Of course, stroking to completion was out of the question, Mistress would be very displeased. He had tried to sneak an orgasm in before seeing her once or twice, somehow she always knew, and she always made sure he regretted it.
After showering John dressed in an unassuming pair of slacks and an oxford shirt. He looked at himself in the mirror, it would take a very keen set of eyes to make out the outline of his cock against the thin fabric of his slacks; still maybe he should play it safe and switch into a pair of jeans instead, the thought of anyone being able to tell he wasn't wearing underwear was just too embarrassing for him. He didn't have time, his phone chirped again, Mistress was waiting outside. He hurriedly grabbed his keys, wallet, and phone and scurried out the door to meet her. John slid into the passenger seat of her idling car.
"What a good boy," Mistress cooed as he sank into his seat. She reached over and stroked his chest and arms with her free hand.
John wasn't prepared to be praised and touched like that so soon. He let out a shudder and a moan of pleasure. Then, embarrassed at how easily Mistress could excite him, be put his hands over his mouth to stifle any further noises. Mistress giggled as she watched her little slut squirm for her. She put the car in gear and started to drive. She let the silence speak for her for some time, letting John's slide unassisted down some submissive rabbit hole. Finally, after a few blocks, she spoke again.
"I trust you are dressed as instructed pet?" she asked.
"Yes Mistress," John replied with well trained immediacy.
"I want you to show me slut," Mistress instructed as the car pulled to a stop at a red light. "Unzip and take your cock out for me."
"Yes Mistress," John replied with some reluctance, he looked around at the other cars in traffic, could they see him? John unzipped and opened his pants up, showed Mistress that he was indeed nude underneath as he pulled his cock out for her.
"Awww," Mistress replied with an exaggerated pouting of lips. She glanced over at his cock, only mostly erect. "Why aren't you any harder than that for me slut?"
"I'm sorry Mistress," he replied "I am just a little nervous about being in the car like this, someone could look over and see."
"That's not excuse pet boy," Mistress replied, her eyes back on the road now. "Stroke that cock for me until you are on the edge like a good slut."
"Yes Mistress." John reached down and stroked hard and fast, quickly bringing himself to full erection. He continued to stroke in silence while Mistress drove, occasionally stealing a glance over to peak at her stroking pet boy and allowing herself a pleasurable smirk at the way he obeyed her. She slowed down as lights flashed and the train tracks and the arms came down. They would be here for a moment.
"Should I stop stroking now Mistress?" asked John as his cock pulsed and throbbed near the edge.
"No slut, but you may slow down a little so you don't cum." she replied.
As she did a large SUV pulled up next to them at the tracks. Inside John could see a group of college girls, on their way out for a night on the town no doubt. He looked over at Mistress feeling panicked, but she just gave a subtle shake of her head to indicate he wasn't allowed to stop. Mistress bit her lip and watched her pet stroke with shame and anxiety. It wasn't long before one of them looked over and sway what he was doing, from her vantage point there wasn't much John could do to hide. A second later they were pointing and giggling and staring. John felt his face burn with humiliation.
"Please Mistress!" be begged, almost in tears as he masturbated in front of complete strangers like a perfect pervert. "Please let me stop!"