Amy led Sheldon to the bedroom and guided him to the bed. She pulled off his T-shirt revealing herself to him he gulped his Adams apple bobbing nervously.

"You know Amy this sudden attack of ardor I have been experience may very well be the effects of pon Farr."

"What's that Amy asks" straddling his lap and burying her face into his neck and sucking lightly. Sheldon's breath hitches but he continues.

"In Star Trek Spock's blood boiled with mating lust once every seven years and he had to act on it or he would die."

"So you are saying this is probably a once in seven years thing?" Amy asks looking into his eyes, the pupils are still dilated. His hands are splayed on her waist but are slowly making their way to her breasts which are swollen and aching to be touched.

"Yes." he says solemnly as his hands make their way to her breasts and his fingers lightly stroke her nipples.

"I can live with that." Amy gasps before dissolving into pure sensation. Every caress every kiss feels like pure magic. If she believed in magic that was. Sitting on his lap she felt his erection digging into her and now she is eager to free it. She has seen him naked before and is eager to see it again.

Amy slides off his lap and goes to start unbuttoning his pants he helps her and slides them and his underwear off at the same time. It is Amy's turn to gulp she has never seen a mans fully erect member before and it is daunting. Really she does not know how it is all going to fit but she is more than willing to give it a try. Amy reaches down to stroke him he feels like steel encased in silk. She rolls him around in her hand for awhile and he moans softly. The sound is so erotic it urges her on to be bolder but then he stops her. She looks up at him stung.

"Amy I do not know much about this but I am pretty sure I will not make it to the actual coitus if you continue your efforts here." Amy blushes and lays back on the bed.

"I am ready now? are you?" He moves his body inbetween her legs and slides her panties down and off. Amy nods her head as he poises himself at her threshold. As he slides in and she is thrown into a world of paradoxes ,of delicious agony, of hurting so good. The feeling is so foreign and he stretches her to the limit but the feeling while at first odd grows to be pleasant. Amy whimpers in pain and delight.

"Am I hurting" you he asks concerned, " I heard that the first time for females can be painful."

"It hurts a little but it also feels good."

"I can stop if you want." he asks his voice getting that adorable lisp he gets when he is worried.

"No do not stop." With that he moves in earnest and all the feeling of pain slips away and she is awash in a sea of sensation. Just as she reaches the precipice Sheldon shudders and he is spent. He rolls off her and lays beside her quiet. They lay in the afterglow of their lovemaking for awhile before Amy turns to him.

"That was wonderful Sheldon and even if that only occurs once every seven years then I am glad that I got to be apart of it."

"You know Amy if we think of this as an experiment we were conducting, the only way to get accurate results are to repeat the process again."

"Are you saying you would like to do it again?"

"Yes" he says nodding his head

"Right now?"

"Please." he begs but Amy is already on top of him and this time when she reaches the precipice she falls off and shatters into a million little pieces.

Amy wakes up and looks at her alarm clock it was 6:45 the time she usually wakes up. It took her a minute to process why she felt so happy and so sore but then she looked at the other side of the bed and saw him still asleep. He looked so adorable, his hair tousled like he never lets it be and his shirt still off. Amy knew it was crossing a line but she could not help herself, she got her phone and snapped a quick picture of him in her bed if only to prove to herself later that it was not a dream.

Amy got up and took a shower, she let the hot water stream down her body. Did she feel different? She asked herself, she always thought that when it finally happened that she would feel this seismic shift in herself. That she would somehow feel more like a woman than before. Maybe not more than before but she felt sexier and more wanted.

How it had happened was beyond her wildest imagination. She giggles to herself remembering how as they were undressing he told her that his sudden ardor was due to some science fiction nonsense. That he did not expect to feel this way again for seven years. Then after they were done the first time she told him that even if it was only a every seven year thing she would be glad to join him again and he had said that to truly understand the experience that it should be repeated. Then they joined together again again this time much longer than the first. To think just yesterday she was beside herself excited that he had kissed her in his office.

When she finishes showering and dressing Sheldon is awake. She sits on the corner of the bed and hands him a cup of tea.

"I slept well, did you?" he says as he sits up smiling at her

"Very well, I wanted to know how you wanted to proceed, this being a work day."

"That is right! I have no clothes here, and I can not very well show up to work in the same clothes as yesterday. I do not want to have to do the Penny special."

"What is that?"

"Where you return home in the same clothes as the night before, a sure indicator of coitus."

"I could call Leonard and say you fell asleep over her watching a movie, then I could go get your clothes for you while you shower here. I can drive you to work." Amy can tell he does not want anyone to know that they have had intercourse. Really she does not want anyone else to know yet either she wants it to be special still.

"You do have a better understanding than most of my closets organization flow chart that would be acceptable. But wait,Leonard would still know I spend the night here."

"You have spent the night before and slept on the couch."

"I did not plan on seeing you last night and Leonard will know that."

"Say I begged you to come over, that I was feeling embarrassed about them catching you kissing me yesterday."

"If you were embarrassed by a kiss, they would have no reason to expect that coitus had occurred. That is as good of an idea as any, why did my baser urges have to kick in on a weeknight?"

Amy drives over to Sheldon's apartment she has a spare key that he gave her. She called Leonard on her way over and he said he was heading out of the door. Amy does not think that Leonard believed her but she is too happy to care. She picks out his clothes according to the closet schematic he has laid out. Then heads out of the door quickly where she is. waylaid by Penny. Normally she would be excited to see her but she knows that if she tells her what happened then she will tell everyone.

"What is up Amy!"

"Oh nothing much just retrieving some of Sheldon's things he fell asleep at my apartment watching a movie and I am driving him to work."

"You guys had sex! Oh my god Amy!"

"No! Amy shouts flustered " I said we were watching a movie "

"Everyone knows that is code for we had sex! Plus you are glowing! I know sex face when I see it! Tell me all about it!"

"Alright! yes we did it and it was wonderful and amazing, and I really do not want anyone else to know!" Amy says storming down the stairs.

Amy and Sheldon drive to work together and Amy is quiet,she really hopes that Penny keeps her mouth shut. If the guys hear about this and tease Sheldon it might be the last time they ever do it. Sheldon is in a great mood and chatters happily the whole way to work. Not about last night or anything personal at all. It soothes her nerves for him to be so carefree and eventually she let's go of her anxiety and joins in the conversation. They go their separate ways when they arrive and Amy retreats to her lab. Glad to have work to distract her from her jumbled thoughts. She makes the decision not to see him at lunch she needs to let him come to her.