And Stop and Start and...

You could have nutted right then. You felt like you did. Her lips were so soft against yours, and hot and wet… then she pulled away and you were in a sort of strange, floating trance, unable to remember how to breathe. You didn't want to move, body tense from the shock. You hadn’t cum, fortunately. In fact Doctor McGee had stopped stroking you, her hand just gripping the base of your tumescent, almost glowing, member. She looked nearly apologetic, cheeks clearly flush with desire, watching your slaw jawed expression.

“Now you’re very hard,” she said then, and you filled your lungs with a **** gasp, spell broken. Your erection was steel, that’s for sure, and your lips still tingled. You wanted to say something, but the Doctor leaning forward once more hushed you. “Let’s keep you that way,” she said, kissing you again, possessively but briefly because she had one last thing to say. “Tell me when you’re close.” Then her tongue was in your mouth. She started stroking your cock. It was all you could do to take breaths in between letting her venture her frequent, needful oral explorations. Lips smacked, and you tasted her spit, had to gulp it down at times. This was pure heaven, your cock throbbing to further tumidity in her shifting grasp. This was it, you thought. There was no way to stop you now. This couldn’t stop. You felt the pressure building. The pleasure cresting. You wanted to cum for her so bad.

“Ahh… I’m gonna...” you grunted, and you broke the kiss somehow. And that stopped everything for a moment. Her hand left your cock and your heart sank while something else inside you sighed in shivering relief. You were happy for this agony though, aching as it was to once again be left teetering on the precipice, then experiencing the pulses of gradually receding arousal. But you didn’t wilt. You couldn’t, not with her lips suddenly finding yours again. For a minute she just kissed you some more, her hands on your chest, her breath on your tongue. Then…

“We should stop,” she said, the breathy voice of the Doctor ensuring your dick stayed upright. You wanted to complain but you didn’t know what words would work to make this continue. Keep kissing me or I won’t stay hard? The flavour of your saliva is like Viagra to me? You were sure just the memory of her lips would maintain your erection for the next hour. She stood, but held your wrists to pull you to your feet. “You should lie down,” was what she said next, and you were lead to the other side of the lab where what you had thought was a short bench covered in lab boxes and old papers turned out to be a kind of chaise longue. This must have been put here by Doctor McGee at some point for her to rest on when she couldn’t be bothered going back to her bunk, only she had already grown accustomed to falling asleep, arms folded on the consoles while sitting in her chair.

The boxes were shifted off the black leather and onto the floor then she gently shoved you onto the lay down couch. It was a long piece of lounge furniture and you found yourself sitting up near the top end of it, watching Tina remove her long white lab coat. She remained otherwise dressed, in her white button-up with the sleeves rolled up, and that tight dark pencil skirt that stopped above her knees. She got onto the chaise, wide enough to let her squeeze next to you where she reseted on her side. This way she could take hold of your cock, which she did again, eyes level with yours. Lips in range for more kisses. But instead of doing that she started up her stroke again, and you both watched her work from this angle for a few minutes. You had to lay back and relax and receive your handjob this way.

The Doctor’s pace was slow and methodical, making sure she squeezed her fingers around every inch of your hardness, massaging tension into you. Her face was so close to yours. You would only need to lean forward a little to take her lips again. Taste her. You wanted that more than you wanted to cum at this point. You could feel her breath on your throat as her hand went up and down your ever stiffening shaft. If there was some way to will yourself to stop getting so hard you would have, in hopes she might pull out a trump card or two to get you back at maximum rigidity. But you were not sure you had ever been as erect as you were now.

You had to forget about that for a few minutes and rolled your head back, shutting your eyes. She was masterful at applying just the right amount of pressure to slowly, slowly, build your pressure back up to its peak. Fifteen more minutes passed, the clock now at an hour and thirty two minutes since everything began. She knew your body now. The telltale shuddering of your inhalation and the flexing of your thigh muscles. She let go of you before your throbbing became too intense and you both sighed, thankful for the respite. When you opened your eyes the look she had was pinning you to the sofa. Her hand was against your abs, then you felt a bit of a press as she leaned forward and kissed you again.

God this was heaven… making out with the doctor, the warmth of her tits present through her shirt, while your cock twitched, feeling like a burning hot poker sticking up in the cool air. She pulled her mouth away a little reluctantly, teeth grazing your lower lips. Just the faintest gasp from her and your heart was fluttering. Break over then. That hand found your cock once more and her work began anew. Your head was so clouded the air seemed to steam pinkly. It no longer felt like this exercise was purely for scientific purposes. No longer to simply increase your load. At least that’s what you told yourself, and your cock swelled some more in her grip at the idea that Tina wanted you all along. Wasn’t it obvious? You had never experienced something more erotic than to have your colleague’s body sticking to yours as she jerked off you so lovingly and superbly on this lounge. You wanted her so much.

“I really like you, Tina,” you blurted, unable to control your burning mind any more. Your defenses were down with how difficult it was to keep from cumming. She seemed to not hear you, her eyes so fixated on your straining, red cock she was squeezing in her grip.

“Hmm?” The woman turned her attention back to you.

“Can we go on another date?” you half asked, half moaned, her fingers cinching tighter as she sped up her masterful stroke. Perhaps it was more like begging. Her cheeks were already nice and warm, her smile easy.

“I told you I wanted to remain professional,” she said, then she leaned up and planted her wet hot lips onto yours. Her tongue pushed past your teeth as she filled your mouth with her panting and her spit. She was almost licking your chin and her needy grasp wrung a groan from your throat. “What makes you think I’ve changed my mind?” She kissed you again, rocking slightly, leaning more weight onto you while she still pumped your cock. And for the next ten minutes you both made out, and made that you so hard it ached. She slowed down, sensing your imminence again, and concentrated on massaging your tongue with hers. A few minutes more of that exquisite, soft mouth, and then she lifted her face away. “I’ll think about it,” she said, to your surprise. Her eyes traced down your body again, and once she caught sight of your cock and scooped your heavy balls into her palm.

She squeezed and you moaned. “I think it’s working,” she declared, weighing you with her fingers while your dick wobbled dangerously. Her reminder of just how much semen you had backed up didn’t help, and when she gripped your cock again the hard throb from your core was telling.

“Oh fuck… I can’t keep going,” you had to tell her, the little voice of reason in your mind still somehow winning through. “You’re almost making me cum already.” Her hand stopped and dropped away. She looked up at the timer. An hour and fifty minutes of edging… Just a little over one hour left until Diana was due back.

“Okay,” she nodded, still clear headed as well when it came to the care of her patients. “Let’s give you one more, longer rest. And then get a big fat load ready for Wonder Woman. The biggest load ever.” And then there was more soft, wet kissing, but she left your veiny, pulsing tool alone. Mostly.