And Start...

She released you with a gasp, chair legs squeaking abruptly. And you managed to hold on. To clench. To grit your teeth and squeeze your eyes shut until tears wet your cheek. You let out a breath, shaking. Opened your eyes.

Your cock was so swollen and red now. The head was a bulging mushroom, almost purple. The state of you made it look like all of the moisturizing and soothing from the lotions and oils had been a waste of time. Time… you just needed some time to calm down, and the heat making your cock twitch and throb began to abate and you there was the coolness of the air. You remained rigid and red, but you could relax your breathing, the orgasm prevented with a jarring sense of frustration that was almost... pleasant. In that anticipatory way.

“Sorry, John,” said Doctor McGee once it was clear the ‘danger’ had passed. “I got a little distracted.” You nodded to indicate your understanding and forgiveness, still staring at how glistening and hard your dick was. It seemed vaguely angry, standing there so stiffly. So accusingly. “I’ll give you fifteen minutes, then we’ll start again.”

You blinked at the Doctor and registered her meaning, recalling her idea. The bluntness of her statement made you throb and ache. There was no need for further discussion apparently. Not by Tina’s reckoning. That she was going to be jerking you off again very soon was inevitable fact now. It was what the doctor ordered.

The doctor left you to sit there with your boner and that hot thought burning in your brain while she cleared the table of lotions and creams. She fetched some other things to replace them. A bottle of purple fluid was unscrewed and she poured a small cup of electrolytes for you, placing it into your shaky hand. “Sip. Use this time to calm yourself a little,” she advised, though your erection still raged in her periphery. She sat with you then to wait, one more bottle in her hand. Personal lubricant, and she toyed with its cap idly. “We have just under three hours until Diana returns,” she said, scooting her chair a little closer to you and you managed not to flinch. Her hand was on your thigh and she seemed to be gently caressing it without much thought. “I believe we can really make good use of this time to edge you… it might be rather ambitious for an initial trial though. Do you think you’re up to the challenge?” The way she perked her lips had you raising an eyebrow.

“I think we can do it,” you said, trying to sound unbothered by the whole thing. Like sure, you’ll let Doctor McGee stroke your cock for three hours straight. No problem. “I’m ready now,” you decided, feeling emboldened and perhaps overconfident. You put your empty cup of replenishment down and sat back in your chair a little, rolling your shoulders like you were about to start on some strenuous physical exercise. In a way you were. Doctor McGee kept her smile and popped the top off her little bottle of lube.

“Sister Eye, put a timer up on the main monitor,” she said, squirting only a little bit of lube onto her right hand. The Watchtower intelligence didn’t speak, but a big blue timer with a zero’d display appeared behind the doctor. “Let’s begin then,” she said, then grasped your still hard cock again. The clock started.

You concentrated on breathing as she spread the lubricant over your shaft with one hand. You determined that this would be the key to keeping you focused and present and conscious of your body. Right now you were conscious of your breath, and of Tina slowly gliding her grip up and down your swollen genitals, your skin feeling slick and fresh with the slight cooling effect of the lube. “Let’s try for twenty minutes first,” she suggested, only two minutes into her expert stroking, and you could only nod. The doctor was still trying to find her perfect friction with the addition of the slippery fluid, but the process was still sizzling your nerves and you were already taking deeper breaths. In through your nose. Out through your mouth. Focus. Focus. You glanced at the timer. Five minutes.

The wet sound of her stroke, as she rubbed you from base to flare, was almost like the ticking of a clock. She was very nearly in sync with the passing of the seconds, and how her arm never seemed to tire from the repetitive motion had you impressed. It felt so good, and the lewd noise of it, of your breathing, and her breathing, played like rhythmic music in the otherwise quietly humming lab.

Eight minutes in. The doctor had found her perfect pace and grip now, the tension wringing up through your heating cock. His silky hand was something to constantly enjoy, her efforts never something to ‘get used to’. Not even ten minutes in and you knew her touch would always be effective and stimulating. Her skin on your skin was simply divine.

“You’re getting harder,” she had to say, at twelve minutes, and you throbbed in her hand. There was a grin there, but you tried to ignore it. Tried to focus on breathing while your body melted against her luxurious massage. “Don’t cum,” she warned, an unnecessary reminder that only served to make this experiment more dangerous. “Just hold on for a few more minutes.”

You inhaled through your nose, smelling a slightly sweet scent from the lube which was almost all rubbed away at this point, but there was no discomfort at all on your so thoroughly treated dick. Only a constant, slowly building pleasure. Perhaps it was the mental preparation, and the deliberate pace from the doctor, but you reached the twenty minute mark without really breaking a sweat. When she let your cock go you squeezed your eyes shut momentarily. The free bobbing of your dick and the sudden coolness was too sudden a change and shoved you closer to the edge unexpectedly, but the dam held. “Okay, now we break,” she said, and went to pour you another shallow cup of electrolytes. “How close were you to cumming then?” she asked, clinical in her way but her fingers were shiny with some remaining lubricants.

You took another controlled sip, ignoring the faint pulsing in your cock.

“Probably could have handled another five minutes of that,” you guessed, but you were probably overestimating. Doctor McGee considered your answer and then nodded, took your empty cup and used it to pour herself a small drink too. She sipped, ruminating.

“I’ll have to try a bit harder then won’t I?” she said, wiping her mouth with the back of her hand. “What we want to do is get you as close to cumming as possible each time. Almost about to burst. Let’s forgo the twenty minute timer and you just tell me when to stop. I promise I will be more responsive this time,” she added with a smirk. You barely gave the woman a nod before she was handling you again. You looked at the floating timer over her shoulder. Twenty Eight minutes had passed. Two and a half hours to go until you were supposed to cum…

“Oh shit…” you gasped, needing to pay attention to the lovely doctor again when she squeezed your testicles within her palm. Your cock lurched and got harder and redder as she let go.

“Just taking a measure,” she noted casually as her fingers laced around your shaft again. “I expect to feel them get a bit fuller as we get further along. Hopefully.” You caught your breath and the glint in her eye and concentrated on not cumming. It was getting more difficult, and the doctor was still only using her hand. There was a more meandering way to her handjob this time, and though she added a tiny bit more lube again she mostly didn’t need it. She knew how best to caress your every nerve now and was effectively coaxing out your precum without much milking motion. Her grip was even a bit looser, and the silky brushing of her palm over your turgid meat sent electric shivers through you. And then she would grip you, applying just a bit more pressure, more wonderful friction, and for a few minutes she concentrated up around the flared head of your cock and jerked it faster.

You began to sweat, glanced up at the clock. Thirty six minutes since this all began and she was making short work of you this time round. You shifted in your seat a little, as if that might help delay things, but Doctor McGee kept cinching around your pulsing head. Could you reach forty minutes maybe, before you had to cry out and make her stop… before she made you spill your hot seed all over her instead of saving it for the needy patients under your care? You cursed your brain for those swelling thoughts and shook your head, trying to dislodge them. Tina noticed your concerted efforts and the slight bulging as you fought your body. “Are you close?” she asked urgently but not stopping. Just three more minutes until that silly goal you set in your head… but you realised that would be a mistake.

“Yes! S-stop!” you managed to croak and she let go of you. You moaned, the sudden and strange relief confusing your body which had been so near the tipping point. You sucked rapid breaths and Tina watched you, bemused and blushing slightly, but not as much as you were. “Fuck… ooh fuck…” you sighed, the heartbeat in your cock gradually fading, but your skin still buzzed and you had the notion that if she grabbed you again in the next thirty seconds you might just pop off anyway. The back of the chair felt hard against your shoulder blades, and you used that discomfort to distract you from the hotness in your tremulous erection. Closing your eyes for a moment helped… you didn’t have to stare right at the beautiful doctor.

“Let’s keep going,” she said, and you had to look up at the timer again and couldn’t believe ten minutes had passed already. But you realised your hardness had waned in that time of rest, just a bit. She took you in her hand again, firm and purposefully, and resumed jacking you off. Minutes passed, and she got you hard, but there was a pursing of those plush lips. “Should I use more lube?” she asked, and you weren’t quite sure why she sounded so uncertain. Your brain was fogging with warmth from her expert stroking and you felt sweat dripping down the back of your neck.

“This is good,” you said, your voice breathy, but despite your truthfulness she didn’t seem entirely convinced.

“You’re not as hard as you were earlier,” she said, and you supposed she was right. You couldn’t really tell by this point. The **** of this prolonged handjob might have dulled yours senses a bit, and you saw on the timer that you had passed the hour mark. “We want to make you almost cum,” the doctor reminded you. “The more times we can get you to that point in the time we have before the next dose the better.” And here you had been glad that this attempt of her masturbating you might last a bit longer than before. It was impossible to decide if the "stop and start" nature of this endeavour was torturous or satisfying. You still enjoyed the agonizing sensation of her continuous and easy pole cleaning, but it seemed like she wanted to rub you raw.

“I dunno doc, this is kinda nice,” you said, and having her hand glide up and down your cock was almost a comforting feeling now. It maintained your hardness effortlessly. She smiled a little but didn’t say anything for a few seconds, just watching herself jerking your shiny dick. She moved in closer to your body and you could feel the heat of her, the doctor almost shoulder to shoulder with you now.

“I want you to be harder though,” she said, a little demandingly, and your body seemed to respond to the command and puffed in her grip. She grinned and switched her gaze up to stare into yours. “There we go,” she purred, and you were lost in those dark brown pools momentarily. “That’s better. Almost there...” You had been pushing that memory from earlier out of your mind as best as you could. You didn’t want to think about how she measured you for your suit… and the method she used to get you as hard as possible then. You had to do everything in your power to make yourself not cum, to delay your release while still soaking in the simmering pleasure she manually applied to you. Even thinking about it had your heart racing and your balls gave a dangerous shudder. Surely you were hard enough now. Surely she didn’t need to do anything more. “You can get harder for me, John…”

Doctor McGee’s eyes were glimmering and so dark you felt like you were falling into them. And then she kissed you on the mouth.