A long, satisfying sigh slipped from Sam's lips as warm water rinsed her hair and body free of suds. Her mind still set on ideas of how to fix Jack's situation when she heard a creak, it was definitely in the room. Last time Sam had checked, she was alone and most of the base staff had gone home for the night. There shouldn't be anyone else here. Carter carefully peered around the shower curtain, being careful not to reveal anything but her face.

Realization dawned upon her as she had remembered Jack was invisible and it wouldn't be easy for him to get off base without someone. A good chance it's Jack.

"Sir, are you here?" She called out.

Silence filled the room but Sam definitely could feel a presence in the room even though her eyes found no source of anyone.

"...Nope." Came the reply, she knew exactly where he was sitting.

Without thinking, Sam nearly let out a groan as she closed the curtain once more, her head shaking as a small smirk appeared on her face. That was Jack's voice. Was he here to spy on me? What a pervert.

Before she even noticed how deep in thought she was, a giggle slipped from her. Shit. For a moment, she hoped that perhaps he had left the room or hadn't heard it over the shower running.

"Whatcha gigglin' about Carter?" The voice sounded closer than it was before, deeper perhaps.

"Oh, did I giggle? I don't giggle, I didn't giggle sir." Fuck, I'm rambling. Carter get it together.

"Carter… You giggled. I heard you." Even closer, almost directly on the other side of that curtain now.

"If you say so sir." Sam had learned to pause in between sentences to make sure he was still there and hadn't ghosted her without her knowing.

"I thought it was the ladies turn for the showers. If you need me to, I can…"

Silence.

"Sir?"

Deciding to try and peek out from behind the curtain, she knew it was useless with Jack being invisible anyways but she had to try. Was there a presence still in the room?

"You're beautiful, Sam."

"Sir- I.."

Wait, what?

His presence was extremely close, she could feel it. He just used my first name. He called me beautiful too? Is there an explanation for his behavior? She couldn't really tell if there was something else affecting him from being invisible or if he was intoxicated. No, he couldn't be… His voice…

"Sir, are you okay?"

"Yes, Carter. I'm fine, I can see the wheels turning in your head... Now, I think I know how to fix that."

"Sir?"

"Stop thinking so much. It's that simple."

What does he mean? Is he telling me how to relax?

It was so easy for Jack to see her thoughts written on her face at this moment. Taking in a deep breath, he slipped his fingers behind her head to cradle as he leaned in to press her lips against his own.

Confusion was written across her face as she felt a very gentle, comforting hand at the back of her head but then his lips… Oh, I get it.

After a moment, reality hit Sam as she pushed on his chest lightly to pull away. "Sir, we can't…"

"Actually, I think we can make it work. Me being invisible and all. Y'know."

It was a moment before she caught onto what he was saying. "...Technically there would be no real proof because there won't be any physical data or proof to show it. Wait a minute… How did you get past the cameras if you can't walk through doors?" Sam suddenly exclaimed. "I would have heard the door if you…" No way… Did he actually… "You were here the whole time? Before I came in, or you slipped through behind me. Sir?" You little pervert. Despite the fact that she was just discussing something else, she was now curious about this.

"See, you think too much Carter… Think there'll be room for one more in there?"

"Hold on sir, there's no guarantee that we won't get caught. You didn't answer my question."

"So what then? I'll retire, it's time I do that anyway, I want you. I always have."

"You still haven't answered my question sir. How did you… No wait, I don't want to be the reason yo-"

Her mouth was covered again for a moment and she knew it was truly him and him alone. This wasn't the first time they had a kiss but it always felt like the first all over again. "I don't care Sam. I want you."

Oh fuck it all. Damn impossible to prove this anyway.

Grabbing where she had assumed Jack was standing, she pulled him in by his shoulders quickly before closing the curtain and crushing her lips to where she thought his would be. "It's cold out there." She slid her hands down over his chest, the clothes he became invisible with were easy to identify. The BDU's all too familiar with her and easy to maneuver over and off of him. It was strange feeling something that she couldn't see in front of her so she closed her eyes and simply focused on feeling.

Once Jack's clothes were shed, Sam was pressed back against the cool tiled wall as his body pressed against hers. A small gasp slipped past her lips as she felt his hard member against her lower abdomen, her lips in a hot mess with his. Her hands slowly moved up over his chest to the back of his neck to pull him closer as if he wasn't close enough already.

Carter was so preoccupied with his lips and the feeling of his body pressed against hers, the coolness of the wall versus the heat of his body, she almost didn't notice his hand trailing along her side and down to caress her hip before slowly making its way down towards her core. Her toes curled in a little as his fingers teased along the outer lip before slowly delving in between her folds, teasing her some more with light touches along her opening and her clitoris. It wasn't until a whimper was heard, from whom she couldn't tell but it didn't matter to her because his fingers had slipped inside. Excitement and pleasure filled her yet it wasn't quite enough. "Sir…" Sam managed in between their kisses and breaths. "Carter…" Jack growled into her ear as a warning. "Sir.. Sorry, Jack please."

Pulling back, Jack had to take a look at her beautiful wanton face so full of need, it was almost suddenly that he couldn't take the wait anymore. "Carter…" Jack groaned softly as his hands moved to rest on her hips, giving her a chance to back out. He hoped she wouldn't though because that would be the hardest thing he'd ever have to do but he would do it in a millisecond for her.

"Jack, please. I want you… I need you." Thankfully that was all he needed. Using the wall to help, he lifted her up as Jack's lips crashed against hers. Sam's legs moved to tighten and form a lock behind him with her feet. Her arms wrapped around his neck for extra support as she was slowly lowered onto his cock.

The feeling of their bodies locking together was almost overwhelming. Unlike anything neither of them had felt before despite being experienced in sex. Their movements started off small and slow but it wasn't long before their speed picked up, there was no way either of them would be able to last very long with the amount of feelings that they were feeling.

"Sir… Jack. Oh please." Was all Sam could get out before Jack made one shift with his hips and one hit of that sweet spot, Sam was coming apart in his arms. Her body exploded with pleasure and to Jack, it was a glorious sight. Enough to push him over the edge as well as he gave his last few thrusts with a groan which Sam found was a turn-on.

After she caught her breath, she began to giggle as she slowly lowered her foot to the ground, one leg still hooked around his thigh. A questioning grunt came from the invisible man before her. "It's just that… I just realized I had sex with an invisible being. I mean, it wasn't bad… It was great actually but a very interesting… experience sir." What the hell am I saying? Sam couldn't help but continue to giggle at the funny thought, or at least she thought it was funny.

Before she could open her mouth to say something, Jack's lips pressed down onto her own, this time it was languid and so full of love as his hands found hers and weaved his fingers in between hers. A few moments passed before she had to pull away. "As much as I'd love to continue this. I think this room is scheduled for cleaning soon, I'd rather not be in here when they come and I should clean up, again." Sam then bit her lip lightly as she urged him to clean up as well.

Though she hadn't expected him to pull away so fast, so soon that she wasn't quite steady on her feet. Her foot almost missed the floor but thanks to the water running in the shower cubicle, she slipped. Her hand moving out to try and steady herself also fell short of the wall causing her to slam her head into it.

Jack having had turned away from her was too late to try and help her from falling, saw the whole thing happen. "Oh shit, Sam."

Quickly, Jack noted that she had blacked out, checked her pulse and noticed blood dribbling down her temple. Jack rolled her over onto her back and called out once again to see if he could wake her as she shook her shoulders lightly. "Oh, shit." Now the situation had just dawned on him. Sam was wet, naked and unconscious and he was invisible, but also wet and naked.

Now how was he going to do this?