Sheldon sighed as he sat down on the bus. Obviously Penny had forgotten to pick him up from work today otherwise she had better have a good explanation as to why he had to get the bus. Trudging up the stairs, he opened his apartment door to see Penny curled up in his spot under a blanket in her dressing gown, staring blankly at the "Maury Show" flickering on the tv.

'You are so that baby's daddy… that baby has your nose, and your eyes.' She muttered to herself as she watched, unaware that Sheldon had entered the room. Clearing his throat, Penny looked at him and sighed, 'Oh…heya.'

'Hello,' Sheldon said tossing his keys in the bowl, 'You forgot to pick me up. So you'd best have…' Sheldon looked at her, realising that she wasn't her usual happy self, 'what's up with you?'

'I'm just depressed.'

'Why?'

'Leon, the casting director from that Broadway show I auditioned for, called today.'

'And?' Sheldon asked, sitting down as she scooted out of his spot.

'I didn't get the part,' Penny sighed and Sheldon took her hand in his.

'There, there. Would you like a hot beverage?'

'He told me I was the bloody understudy,' Penny sulked and Sheldon stopped caressing Penny's hand as he frowned, visibly confused.

'And that's bad?'

'Well yeah, I don't get to be onstage at all but I have to learn the lines, songs and rehearse. I do all the work with no recognition.'

'Penny, you're an understudy in a Broadway production. That's pretty big and even if it isn't what you wanted, other girls would kill to have it. I know you think that being an understudy isn't as good and obviously it is incredibly frustrating – but remember… it is also a recognition of your talent that they feel you are good enough to handle a major role with minimal rehearsal, on short notice. You know, successful understudies go on to have amazing careers, because to do the job right you need even more drive and determination, and to maintain your focus through the most demanding scenario - all the work, none of the appreciation... but if you can do it, you're going to make it to be the lead down the road. You wanted a career in acting so it's not about this one production - look at the long term effects and all the doors it will open for you.'

'You're right.'

'Now there are two wasted words,' Sheldon stated and Penny rolled her eyes.

'Why are you always right Sheldon? It's not fair!' she sulked.

'Well, I am pure genius.'

Penny snorted, 'Modest much.'

'Why be modest about the truth?' Sheldon said, walking across to the kitchen to get some Kool-Aid.

'Why be modest about the truth.' Penny mimicked when his back was turned. For the past week she was seriously crabby and she couldn't figure out why. When she had asked Amy about it, the diagnosis was she was feeling sexually deprived and in Amy's words, she "wasn't getting any" which to Penny's dismay, she realised to be true. She knew Sheldon wouldn't sleep with her; the simplest chance was so small it was nearly out of reach. There was only so much she could do herself and it wasn't the same as the raw passion she got through physical intimacy.

'So are you going to tell me why you've been so morbid and touchy lately? I've checked my calendar and you're not due to start menstruating for another two weeks.' Sheldon asked sipping his drink and Penny shot him a death glare. He must have picked up on it too then… which meant it had to be blatantly obvious if even Sheldon saw it.

'Trust me Sheldon, you don't want to know.' She said, her eyes flickering back to the screen.

When it comes to 3 year old Tenisha, Ray…. You ARE the father!

'Yeah! I knew he was the father!' Penny said to herself and Sheldon sighed before grabbing the remote and turning off the TV.

'Why do you watch trash like that?'

'I happen to love that show, so to me it's not trash.' Penny stuck her tongue out and this time it was Sheldon that rolled his eyes. Before he had a chance to react, she had snatched the remote out his hand and tried to turn the TV back on but soon enough he had the remote back.

'Penny, this is my apartment, why don't you watch TV in yours. Now, tell me why you are acting strange.' Sheldon said.

'Seriously? Sheldon, you don't want to know, trust me.' She said, folding her arms.

'Yes, I do. Now tell me… perhaps I can help?'

'Oh you can help me Sheldon, whether or not you want to is a different matter.' She chuckled sadly and he frowned.

'Well, you're my girlfriend. Protocol suggests that I do everything in my power to make you feel better so what is it you need me to do?'

'Sheldon…'

'Penny, just tell me.'

'Ok fine! Here it is…' Penny sighed and took in a deep breath, 'I want… no… I need to have sex. I get crabby if I don't get any.'

'Oh…'

'Yes, and I know you don't like the concept of it but it truly is wonderful especially when you do it with someone you love and I don't want to push you into anything you don't want to do. It's just I love it so much because it's something I am actually good at and I miss it. But don't worry I'll get past it.' Penny smiled, sitting back down. Sheldon sat beside her and clasped his hands together, leaning forward for what looked like a serious discussion.

'Penny, as you are aware… I am not like ordinary human beings. I find it uncomfortable and difficult to enjoy physical contact that comes easily to other people. When you once asked me would I ever be physical with Amy, I told you it was a possibility. Well I didn't lie to you. Amy has definitely softened me, made me more aware of romantic interactions and I do thank her for it. I think since I have been dating you I have become far more relaxed and comfortable into these social interactions… I mean I've kissed you at least a dozen times more than I kissed Amy and I have even slept next to you… twice I might add. I'm not rejecting the idea of a physical relationship with you… I just need to plan it and prepare myself.'

'Ugh, Sheldon, I appreciate that's how you feel but you can't plan sex… it's all about raw passion and the heat of the moment. It's about feeding off your partners emotions and when it happens…. Oh Sheldon, it's amazing!' Penny yelled, trying to make him understand.

'No it's about planning in order to avoid unwanted pregnancies! Coitus is for procreating new life, not for pleasure. As beautiful as you are Penny, you are far too promiscuous for your age and you need to tone it down! ' Sheldon growled, their difference of opinion creating a rift in the atmosphere. Penny immediately recognised it as sexual tension and before she realised what she was doing, she chucked herself at him, her lips crashing against his in a fit of passionate rage. Sheldon was just as shocked at his own reaction and how his body just seemed to go with it as he returned her kiss eagerly. When he felt her tug at the bottom of his flash t-shirt and a twitching in his lower regions, he pulled away quickly.

'Penny, I know you're sexually frustrated but I just don't think I am ready yet.' He gasped, trying to think desperately of things that would not arouse him and would help regain control over his emotions. What he hadn't taken into account was Penny's experience. She had sensed his arousal and she was too far gone into what Sheldon called "Sex Perversion" to stop now. She had realised that she had mixed up pushing him and pressuring him into a physical relationship. All he needed was a small push because she knew he wanted it deep down, he just wasn't aware of it. If he didn't want it, he wouldn't get so easily aroused like every other red blooded male. Amy had gone about it the wrong way, but Penny… she knew what she was doing.

'Yes you are Sheldon, I saw on your schedule in your room that every Tuesday and Friday evenings, just before you go to sleep, you schedule some time for you to satisfy your little friend. If you can do that… trust me Sheldon… you can shag.' Penny said and Sheldon thought about her argument, realising what she was saying was true and he was definitely aroused by her kissing and touch. However, his stubbornness prevented him from letting her be right for once and he continued to try and resist.

'Maybe so, but…'

'Oh come on Sheldon… you can't tell me that this doesn't turn you on?' She asked, backing away and dropping her dressing gown to reveal just her purple lace bra and black shorts. She then slowly stripped off until she was fully naked and standing in front of him. Sheldon didn't blink as he watched this beautiful creature undress before him. He swallowed and opened his mouth, however no words came out. Penny smirked. Success. 'Sheldon, I need you.'

'N-n-n-need me?' he asked, staring at her naked form.

'Yes. I need you to make love to me; I want you more than anyone I've ever been romantically attracted to.' She said, not breaking eye contact with him. Sheldon fought an internal battle with himself until he realised that he wanted this too. He was a 34 year old virgin and he was most comfortable around Penny. He stood up and slowly edged towards her before bending his head and capturing her lips in a soft kiss, his hand resting on her waist. Without breaking their kiss, she led them to his bedroom and shut the door behind them. Tonight, she would show him what he had missed out on for the past 16 years. Tonight, she would make him a man.

Well… betcha didn't see that coming xD Let me know what you think guys! Can't believe we're past 200 reviews already, thanks so much for committing two minutes of your time and letting me know your thoughts, it helps me write more efficiently and effectively. I know Sheldon and sex is a massive debate but I think if your gonna have a relationship with a woman who's a big ol' 5, it's gonna happen haha have a nice day and I will update soon! xx