His eyes. His eyes were incredible. Steady, attentive, a little predatory, and dark with want. And he watched her, so intently, drinking in her face, her breasts, her hips. No one had every looked at her like this, like having her naked and beneath him was something beautiful, fascinating, something miraculous.

And she was so…hot. She wanted him. Wanted him in a way that pooled deep in her belly, that made her desperate, that gave her a mad need to whimper whenever his face flickered into her thoughts. His hands, his graceful, capable hands with those long, precise fingers, slid from her knees, up her thighs, over her hips, and she did whimper. He ran his tongue in a slow circle around her navel, kissed his way up her belly, the slight rise of her ribs, her breast, and pulled a nipple into the hot cavern of his mouth.

She gave a small gasp of pleasure as he teased it with his tongue, nipped with his teeth. Looking down on him like this, with his dark hair mussed and his skin flushed and just as crazy and lost and delirious as any man drowning in flesh, seeing him glance up at her those eyes, searching for signs of her approval as he tried to please her, was enough to almost set her aflame.

She pulled him up, locked eyes as she took his left hand in her right. She placed his hand over her, guided his fingers into her slick, wet heat. "Do you feel this, Sheldon?" She drew his fingers slowly, back and forth. "Do you know what this means?"

He was watching his hand move between her legs. A small bead of sweat rolled down his temple and onto his shoulder. "Th…that your body is readying itself for intercourse?"

The tip of his finger brushed her clit and she gasped. Penny pulled his lips to hers, kissed a line up his jaw to press her lips next to his ear. "It means I want you, Sheldon. I want this," she ran her hand over the erection peeking out of his pajama pants, "inside of me. I want you inside of me." She bit down softly on the tendon between his neck and shoulder, and wrapped her hand around his length, and it was Sheldon's turn to gasp.

Those long fingers moved a little faster, and Penny moaned as he slid them up into her. She brought her hand up to her mouth, smirked at Sheldon as she licked her palm, and wrapped it back around his cock. His fingers moved, and her hand moved, and the sheets whispered and the bed creaked, and when he stopped Penny could have cried.

"What's wrong?" She could barely find her voice.

Sheldon drew his fingers away and looked down at them. "I…I don't know what to do. I don't know how to touch you."

Penny would never in her life have thought that her heart would ache for a man who didn't know how to touch her in bed. She took his hand and pushed his fingers back to her core. "Sheldon, it's okay." She smirked up at him. "I'll teach you."

Sheldon gave her a hesitant smile in return, and pushed his fingers back into her. Penny hummed in approval, and leaned back against the headboard. "Move them. In and out, slowly."

His fingers started to move, and Penny thought that just having Sheldon obeying orders might be enough to make her come. But he was watching her expectantly, waiting for his next instruction, so she continued. "Mmmm. Now curl your fingers up, like you're calling someone to you."

His fingers curled, and Penny gasped. "Oh! Oh, yeah. Hit that spot again."

He did, again and again and again. Penny's hips lifted to meet his hand, and she let her head drop. Sheldon ducked his head to take her breast back into his mouth, and she started to cry out in time with the thrust of his fingers. She lifted her head to watch him, and the sight of his fingers disappearing between her spread thighs, his lips wrapped around her breast nearly made her lose it. Sheldon pulled back and met her eyes. Then he ran his thumb over her clit.

Penny exploded. She slung her head back and cried out, loud and long. Her thighs clenched around his hand, and her back arched off the bed. And through it all she could feel Sheldon's eyes on her. Watching. Learning.

Breathless and sweating, she pushed him back and rolled him over. He looked puzzled, but his eyes went blank as she straddled him and ground herself into his hips. Slow, agonizingly slow, she pulled his pajama bottoms down his thighs, freeing his erection to the warm, moist air. She moved back along his legs, taking his pants with her, until she finally jerked them off his feet and flung them across the room to land in a puddle by his dresser. He felt the instinctual urge to pick them up and fold them, but then Penny was sliding her way back up his legs, crawling like a predatory cat, her nipples lightly brushing over his skin, and he forgot about the pants.

When she got to his penis, hard and long and pressing up against his stomach, she ducked her head and caught his eyes as she ran her tongue along the underside of it, then swirled it around the head before taking him all the way into her mouth.

Sweet Jesus.

Sheldon fisted his hands into the sheets and she worked him with her mouth, sucking and sighing and licking and wrapping her fingers around the base while she flicked the tip with her tongue. And the sight of her. The image of her blonde hair pooled on his abdomen, on his sheets, those eyes looking up at him while her lips wrapped around his cock. It was almost too much.

Penny let him slip out of her mouth with a little pop, and continued her way up his chest to whisper in his ear. "Just relax now."

She leaned back, braced one palm on his chest and reached between them with the other. She lifted her hips and positioned him at her entrance. And Sheldon's mind went blank.

Penny lowered herself slowly onto him, savoring that delicious sensation of being filled, and the beautiful play of emotions flitting across Sheldon's face, from surprise, to comprehension, to ecstasy. His breathing was erratic, shallow gasps, and she could feel his heartbeat pulsing through his skin.

And then his hands were at her waist, his fingers digging into her skin, and he was moving inside of her. She braced her hands on his chest and met the upward thrust of his hips, their bodies meeting audibly in the middle, both of them crying out as they met. He pulled her down against his chest, using a hand on the small of her back to keep pushing her hips up and down around him, and pressing his lips to her temple. Penny was making little gasping noises, and her moist breath was in his ear, and her breasts were pressing into his chest, and he couldn't get close enough or deep enough to satisfy whatever was building inside of him.

Penny tightened her thighs around him and whispered, "Sheldon. The spot. Hit that spot."

Sheldon paused and nodded, did a few calculations in his head, then shifted her above him and thrust hard into her. Penny made a high-pitched moan and Sheldon cried with her as she tightened around him. She sat up and moved faster, riding him. Sheldon watched as she reached between them to touch herself, and he felt the end coming hard and fast.

"P…Penny. I'm…I'm going…"

She was too far gone. With a few more flicks of her finger, Sheldon felt her muscles clench around him like a vice and she threw her head back and cried his name. And Sheldon fell over with her.

They collapsed in a mass of sweat and flesh, gasping against each other, their hearts attempting to burst from their chests. Then Penny hummed and stretched and kissed his neck.

"Jesus, Sheldon. That was incredible."

Sheldon had to agree. "Yes. Unexpectedly powerful." He glanced away from her. "What are your thoughts on…repeating the experience in the near future?"

She propped her head in her hand and grinned. "Are you asking me to have sex with you on a regular basis?"

"If the experience was pleasurable for us both, I see no reason why we should stop after only one encounter. If you're worried about the specifics, I will of course draw up a contract to work out the details. If you…if you agree." He was fiddling with the sheets as he spoke, obviously uncomfortable.

Penny grabbed his hand and laced her fingers through his. "I would be very open to doing this again, Sheldon. No contract needed."

Sheldon nodded, and began working out the terms he would include in the contract that he was going to draw up anyway. Penny tucked her head against his shoulder, and he hesitantly wrapped his arm around her waist.

"What do we do now?" he asked.

Penny snuggled against him. "Well, I don't know about you, but I kinda like to sleep after sex."

Sheldon considered this and nodded. "Yes. Sleep is acceptable."

They didn't even bother with the covers.