"Oh god, I have to cum soon," he pleaded.
"Don't," she said. She didn't want him to cum; she wasn't ready herself yet. "If you wait, I'll take off everything."
"Yes, take it all off. I want you to be naked in your office."
Sarah put the phone on the table and stood up. She looked around. The office was empty. It didn't feel right, but that's what made it feel so exciting. She unzipped her skirt and let it fall to the floor. The sound of her skirt hitting the carpet seemed so loud. She slid down her panties and stepped out of them and put them on her desk. Still standing, she picked up her phone.
"I'm naked," she said.
"Good," he replied. She started to walk around the office, feeling amazingly exposed, like there were actually people here watching her. Her hand was constantly in her cunt now. Rubbing her clit, faster and faster, sometimes slipping a finger in deep inside her, imagining her two stiff fingers were his cock.
"Are you still jerking?" she said.
"Yes."
"Bring yourself to the brink, but don't cum."
"Oh shit, I'm almost did then," he moaned.
"Don't cum," she said.
"Ohhhhh," he moaned. She could hear the creaking of his bed. He must be really going at it. She smiled at the thought. His muscles flexing as he worked on his cock. Her own excitement increased in waves of pleasure.
"Shit," he said. "I almost came."
"Take it easy," she said. "Nice slow strokes now."
She walked back to her table. Straddled the corner and rubbed her cunt back and forth over the desk edge. "Right now," she told him, "I'm rubbing myself on the edge of the desk and it feels great." And it did.
"I want to hear you playing with yourself," he told her.
She sat back down in her chair and hitched each leg up over the arms of the chair. It was a stretch, but she felt pornographic; she felt amazing. She put the phone to her cunt as she worked herself over. She heard her own wet folds of skin as she franticly rubbed. The pressure was mounting. With her legs hitched up over the arms of the chair, it felt as if she was being restrained.
She put the phone back to her ear. "Like what you heard?" she asked him.
"Yes," he said. "That was so hot."
And then she looked up and saw that a man was standing in front of her, beside her cubicle partition, watching her. She sat spread, naked and exposed, rigid with fright. He was casually dressed, not an office worker. Maybe a late working cleaner, maybe a guy who was picking up another late office worker and wandered in to see who was making all the panting noises. He was about her age. He looked at her face, and then at her exposed cunt.
"I'm getting close," said her boyfriend.
The stranger didn't say anything; he wasn't handsome, but he didn't look threatening. A crazy notion entered Sarah's head. She looked the guy in the eyes and made a jerking motion with her fingers.
"Don't cum yet," she said to her boyfriend. "I'll catch up with you."
She rubbed her clit again, knowing the stranger could see it all, her clit, her arsehole, everything. He reached down, unzipped himself and pulled out his cock, which was already hard. She groaned as she saw his engorged cock.
"Pump it hard for me," she gasped. She was talking to both men.
The guy in front of her grabbed his cock and pumped hard and fast strokes. He watched her rub herself as he pumped, and she knew he could hear her wetness as she rubbed. He pushed down his pants, revealing his cock and balls to her. His balls jumped and jiggled as he pumped furiously.
"I have to cum," her boyfriend pleaded through the phone. "I just have to cum, I'm going to cum."
Sarah was feeling ready as well. "Okay," she moaned. "Cum for me. Squirt that load for me. See what you got." Again, she was talking to both me.
She heard her boyfriend cum. "Ahhhh oh ahhh." She heard the bed creak, the rustle of the sheets. "Oh shit," he cried. "I'm squirting now; shit a big squirt on my chest, oh, another one, oh shit, it's going everywhere, over my hand, on my pubes. Oh god what a mess."
This was too much for her. As she pictured her boyfriend naked and coming all over himself, big shots of warm cum squirting over his chest and stomach and hand, and as she watched the guy in front of her jerking his cock, and as he watched her masturbate, his hungry eyes feasting on her exposed cunt, she rubbed herself to near climax.
"Oh god, I'm almost there," she groaned.
And then the guy stepped over to her desk, his buttocks clenched, he gritted his teeth and came. A squirt of thick white jism sprayed across her desk, and then another one, and as she watched the stranger ejaculate, emptying his balls all over her work area, she came. She had been keeping relatively quiet until then. But as a huge orgasm shot through her restrained legs, she let out a cry, spasming in her chair. "Oooh, fuck, ohhh god." Turned on by her own orgasmic cries that echoed around the office, and cumming in front of a stranger, she bucked up into her hand, and as another orgasmic surge shot through her, she cried out again, "Oh, shit, fuck yes, ahhhhhh."
She slowed her rubbing and let the warm, tingling feelings settle through her legs and stomach.
"You sounded as if you came hard," said her boyfriend.
"I did," she sighed.
The stranger pulled up his pants, put his spent cock away, and zipped up. He looked flushed, content. But he only nodded to her and then left.
Sarah never saw the stranger again, and she didn't tell her boyfriend about the third person in their phone sex encounter.