Amy was just reaching for her mug when she heard her phone vibrate inside her purse. She leaned down and dug around in her purse before pulling it out.

What the hell did we walk into?

Sighing at the blonde, she quickly replied before firing the text.

I'll tell you at Girls Night tomorrow.

After placing her phone back into her bag, she leaned against the back of the couch and smiled as Sheldon draped his arm over her.

"You had sex?!"

The shocked looks on her friends' faces only made her wish she was video taping them.

"Twice," she grinned with a raise of her brow before sipping her wine.

"Is he..." the aspiring actress looked around her apartment nervously. It seemed she was having a hard time asking this particular question.

"'Is he' what?"

"Umm.. Well if you wanted to do it twice, he must- well-"

"Is he good in bed?" Bernadette finished. She was never afraid to say what she was thinking.

Amy blushed at the question, but couldn't help the smile that was tugging at her lips.

Bernadette was bouncing in her seat. "Details, Amy!"

"Waaaait. Wait, wait, wait. I don't need to know all the details."

"Well, I do. Go ahead, Amy. Start at the beginning."

Amy squirmed in her seat a bit as she thought back to their make out on the couch that turned into the most amazing evening of her life. After taking a deep breath, she began to rely everything.

When she finished her story, her friends had disbelief written all over their faces.

"I can't believe it." Bernadette had her hands under her chin as if this was story time before bed.

"And Sheldon didn't freak out afterward?"

Amy shook her head as she reached for her wine again. "You saw him for yourself last night, Penny."

"You saw them!?"

"Not during sex." She waved her off with her hand. "But it seemed it was going in that direction. Sheldon had his hand pretty high up her shirt. Well, Sheldon's shirt."

"You were wearing his shirt?!"

"I said he gave me a shirt afterward."

"No, you said he gave you a shirt."

Amy knit her brows. "Who else's shirt would he have in his room?"

The microbiologist pondered this for a second before releasing a quick "Oh."

Shaking her head, Penny stood up to get more wine. "So, are you guys going to put sex in the Relationship Agreement like you did with kissing?"

"I don't know," she shrugged. "He hasn't mentioned it. Should I?"

"Well do you want it to be a regular thing? Sheldon puts everything in that damn agreement." She walked back to the couch before taking her seat.

"I guess I'll just ask him about it tonight if he doesn't say anything. I'm going over there after this. He said he had something for me."

"Oooh a gift? Howie would give me gifts after sex. Maybe that's what Sheldon is doing. Way to go, Amy."

Blushing as deeply as the blush wine in her glass, Amy looked down at her feet.

Could Sheldon really be giving me a gift because we had sex?

"You had sex?!"

"Woah."

"I can't believe Amy finally got laid."

"Hey," Sheldon scolded at his caramel skinned friend. "That's my girlfriend you're talking about."

Raj quickly picked up his beer and sipped it.

"Who initiated it?"

"Was that the only time?"

"Was it romantic?"

"Gentleman, I really don't want to be relying details of my sexual relationship with Amy Farrah Fowler..."

"But...?" The short engineer was just like his wife in wanting to know all the details.

Sheldon narrowed his eyes at Howard before they visibly softened as he looked at his group of friends. "It was incredible!" he beamed, nearly coming off his spot. "I never knew I could feel so.. so.."

"Good?"

"Satisfied?"

"In love?" This time, all three men stared at Raj with shakes of their head. "What? I'm a romantic."

"I was going to say 'alive'. Afterward, I felt like I could do anything!"

"Like a second round?" Howard teased, a small smirk playing on his lips, only it turned to a look of surprise when he got an enthusiastic nod from Sheldon.

"Are you adding it to your Relationship Agreement?"

Sheldon's grin quickly faltered as he took in his roommate's inquiry. "I haven't thought about that. I guess we'd have to since kissing is in there, right?"

His friends shrugged.

"It's not our decision, Sheldon. That's your and Amy's crazy agreement."

Knock knock knock

Sheldon closed the fridge with a grin upon hearing the set of knocks. He checked the clock and knew it was Amy. Leonard had left only minutes ago to spend the night at Penny's and it was only obvious that Amy would be on the other side.

Walking across the living room he let Leonard's question ring in his head.

"Are you adding it to your Relationship Agreement?"

It was a question he hadn't thought of. He enjoyed coitus with Amy immensely, but kissing came with sex and tonight was not a date night. Nor was the next day or even the week after that.

Sheldon knew should forget the plans he had for tonight and maybe even dip into Kohlinar.

Of course, all rational thought went out the window when he opened the door.

"Hello, Sheldon."

Swallowing hard, Sheldon stepped aside so she could enter. "Good evening, Amy."

Amy took a couple steps forward to stand beside him and he shut the door while she took her purse off her shoulder. "What is this surprise you said you had for- Oh!"

Feeling his fingers digging into her hips, Amy soon felt her back pushed against the cold door as his lips descended onto hers, claiming her mouth. She quickly let go of her purse and placed her hands on his forearms, enjoying his kisses. It wasn't long before she felt a hand leave her hip to work on her cardigan.

"Sheldon," she gasped, her lips still attached to his, "What are you doing?"

"I'm taking off your clothes."

He trailed kisses down to her neck and she tipped her head back to give him access to her throat.

He began to kiss what was offered to him and once all the buttons were done on her cardigan, he pushed it off her shoulder.

He wasn't as patient with her blouse, so after attempting to undo the first few buttons he roughly ripped it open.

Amy wasn't used to this rough side of Sheldon and she didn't think she'd ever be. But boy, did she like it.

She moved her hands to the top of his pants before she began to discard them.

In no time, they had both removed each others clothes and Sheldon quickly leaned down to grab a condom from his pants pocket before rolling it on.

"You had one in your pants?" The shock on her face was not mistaken.

"I always come prepared," he smirked before he lifted her up by her hips while she wrapped her arms around his neck and her legs around his waist. When he was sure she was trapped between him and the door, he grabbed her under her thighs to hold her steady.

Her back was, once again, against the door and she cried out suddenly, but merely in surprise, when she felt the familiar feeling of Sheldon's length buried inside her.

"Yes, Sheldon..."

He quickly captured her mouth and sucked on her bottom lip as his hips rocked against her.

The involuntary curling of her toes was the only work Amy had to do this time around. She groaned into his ear when he tipped his head back while her walls tightened around him, and then bit down on his shoulder, releasing a cry from her boyfriend.

Neither one cared if anyone could hear them, but it was obvious to the couple across the hall what exactly their friends were doing. "Oh, Dr. Cooper!"

"Again?" Penny gasped as she looked toward the door while she and Leonard were wrapped in a blanket on her couch. "Wow, Sheldon has a really high libido."

Grimacing at the sounds of their vocal friends, Leonard shrugged. "Can you blame the guy? He was a thirty-four year old virgin before yesterday."

"Oh, yes. Amy. Amy, look at me."

Amy struggled briefly to keep her eyes open, but she managed to look back into his blue ones and moaned at the dark shade they had turned. Knowing she was the one that turned him on was an incredible feeling. Not to mention, that she was the only one that had ever turn him on. She moaned as he slowed down his thrusts and she groaned at how painfully delicious it felt.

"Faster, Sheldon. Please." Despite knowing she didn't need to do any work, it didn't stop Amy from rocking her hips forward to make him slip deeper inside her.

He grinned at her plead as his forehead rested against hers, his eyes still staring back into hers all the while bucking his hips against her. When she couldn't help but close her eyes, he moved a hand to her nipple and pinched it, which caused a yelp to escape the brunette. "I said keep your eyes open," he warned with a smirk while he rubbed his thumb over her nipple as he felt his orgasm ready to erupt.

His assertiveness was only a turn on and she felt herself unraveling. "Sheldon, I'm gonna come," she whispered, almost embarrassed by the outburst.

He began to quicken his thrusts and within seconds the neurobiologist captured his lips hungrily to muffle her cries of ecstasy. Not like they weren't already heard.

After they both came down from each of their highs, Sheldon slowly slipped out of her before carefully lowering her to the ground. Before she could get her t-shirt over her head, he stopped her actions with a touch of her arm, as soft eyes stared back at her.

"Stay the night?"

And who was she to say no?