A/N - If you don't care to read the smutty stuff, just skip this chapter.

Chapter 26 - Mature

Jack pushed Sam slightly back, bringing her breast to his mouth, lips and tongue teasing and suckling.

Sam stifled the loud moan rising in her throat, as fire and ice flew along her nerve endings, her nipple puckered and begged for more. Coherent thought blurred into the fuzzy haze of desire. "Sir. Yes, Sir."

What the hell, she thought. If she couldn't contain it, there was always Forgoing Acknowledgement and, if that failed, Outright Denial. Not that their friends would believe a word of it - no, not at all.

Jack's bed was solidly built from the wood of the surrounding forest. He'd built it himself long years ago. It would take their weight and movement without squeaking or thumping across the floor. Jack hadn't constructed it with stealth lovemaking in mind, but it occurred to him to briefly bless the impulse he had followed to construct such a solid and sturdy frame. Jack swept his gaze over Sam's body. Oh yes, they were going to need it.

Jack's lips trailed fire across Sam's chest to give loving attention to the breast left wanting in his first assault, while his fingers gently twisted and pulled at the first nipple. He pulled back and blew cool air across the tightly beaded tip, causing goose flesh to spring up in an instant rush across Sam's body. A low groan ripped from her throat and sensation blazed hot trails along her nerves, centering and throbbing between her legs.

Jack licked the raised skin, enjoying the feel of her body's helpless response on his tongue. "Shhhhh, Carter. Stealth, remember."

Sam lifted her head to stare at him. Jack had barely begun to make love to her and he was nothing, if not thorough. She'd challenged him and in taking up the challenge, he brought the same intensity to loving her that he had brought to the missions that most excited and intrigued him. Sam let her head fall back again and groaned. There was nothing to do but surrender and hope she could keep her helpless response contained within the four walls of his room.

Need was pooling heavy and slick between Sam's legs. Her flesh burned with Jack's every touch as he stroked his fingers down her torso and across her belly to tease around and down her legs before moving back up. Sweep after sweep, the hard ridges of his fingertips just grazing the hair protecting her molten core, before flitting away and down, up and down, chasing the path of the moonlight on her skin. Fire raced ahead of Jack's fingers, ever teasing, never satisfying. Sam reached for his shoulders, desperate for contact with Jack's body, but he brushed her hands aside. "Ah-ah, no Carter. My show, remember?" he whispered.

Sam closed her eyes and gave over. Jack would not be denied. She recognized the mood, but never in her wildest fantasies about him had she imagined being loved by Jack O'Neill the Black Ops Soldier on a Sensual Mission. She was done for and she knew it. "Oh boy." It was the only coherent response her brain was capable of producing.

Now it was Jack's turn to chuckle. He slid lower down the bed and slipped one of Sam's legs up and over his shoulder, positioning himself between her legs. "Giving up so easily, Carter?"

Sam's head twisted back and forth on the pillow, "Sir. No, Sir."

Jack shivered. He'd spent years hating hearing 'Sir' fall from Carter's lips. He'd spent the past week reviling in Sam's newfound use of 'Jack', but now, her breathless use of 'Sir' sent sharp spikes of desire lancing through every particle of his being. It was dirty and arousing and his body throbbed with the need to take her.

But beyond that was the feeling that their personas were merging. O'Neill and Jack, Carter and Sam. It had always been critical to keep each one separate and distinct. But now they were merging and in this new relationship, there was room for both.

Jack bent his head to the mound of ash blond curls and inhaled Sam's essence. "Say it again," he demanded.

Sam seemed to intuitively understand the merge he was feeling. She read him as easily now as ever. Her nostrils flared as she drank in the smell and sight of him, "Sir. Yes, Sir." Sam's voice was low and throaty and dirty as hell and the words lit molten fire through them both.

"Put your hand across your mouth, Carter. I'm going to make you scream." The words were voiced low and intense. Black Op's Jack was out to play. He bent his head to the flower of Sam's nether lips. She was swollen and open, liquid and slick and Jack's tongue slid in to dip and taste. Gently at first, soft laps and nips of teeth sheathed behind his lips, calling forth the liquid heat of her response. Jack gradually increased the intensity, nudging and nuzzling the throbbing focust of Sam's desire before diving lower to swirl his tongue round and round her opening, dipping in with sharp thrusts. Sam's taste was the sweetest honey on his lips.

Sam's hand flew to her mouth, covering and smothering the cry bubbling from the depth of her being. Her blood was hot and throbbing. She began to pant behind her hand. Hot and flush her body begged for Jack. She could feel her juices rush like a flood, called by the sweet, insistent swirling of lips and tongue and teeth.

Jack was lost in the taste and feel of Carter's essence. He slipped his hands under her rear, bringing her closer and burying his face between her legs. Sam had begun to grind her hips, riding his face in a blind quest to build the tension coiling and burning to be released. The pants and soft groans that escaped between her fingers gave tinder to the fire and need to sink his shaft deep into her liquid heat.

Jack pulled back and locked his gaze to hers. Need to be inside Carter rode hard up his spine and burned in his chocolate depths. "Turn on your side, Carter," he ordered.

"Sir. Yes, Sir." Sam's voice was a growl, heavy with desire, and reached no further than his ears. She broke his stare and turned away from him, presenting the long sweep of her back as she instinctively drew her legs up to curve in a question mark.

Jack could see Sam's juices glistening on the backs of her legs. She was so wet and dripping for him. As he positioned himself behind her, Jack drew Sam's top leg up and over his. Her body called to him. He reached down between then to guide his shaft through her slick heat to rest at her opening. He held there, torturing them both.

Jack bent his head to nuzzle Sam's neck. He licked and bit at the tendons pulled taught with desire. Sam thrust her hips back in an effort to bring him inside her, but Jack pulled back. Carter was panting and biting her lips in an effort to control and stifle the urge to scream her need for him to take her, but Black Ops Jack was in control and he wanted the sweet torture to last. "What do you want Carter? Tell me what you want," he whispered rough in her ear.

Sam was almost beyond her limits. Every fiber of her being screamed for him to enter and complete her. The soldier in her knew what she wanted and needed like she needed her next breath. She turned her head and spoke low and as clear as any order she'd ever issued. "Sir, I want you rough and hard. Now, Sir!" She emphasized her order by again thrusting back and this time Jack didn't resist. Her order inflamed him and he gave what she'd demanded. In one swift thrust he was seated to the base inside her liquid fire.

Carter's body fluttered and strained to accommodate his sudden and complete invasion; a loud gasp escaped her lips. Jack brought his hand up to cover her mouth, just as he'd done on the Goa'uld ship. That memory triggered the sight of her bare back under the silvery blanket when he'd found her. Desire and need he'd suppressed at the time came roaring into his brain. "Do you remember Carter? Do you remember when I held you like this?" His voice was a rasp across nerves already burning and Sam bit down on Jack's hand to control her cry. Jack didn't remove his hand, but there was room for her to speak around it. Did she remember? She's survived years on the memories of the few times he'd held her. She knew each one in intimate detail and the fantasies they'd spawned.

"Did you want to take me like this then, Sir?" She was pushing them both, Sam knew, but she didn't care. Up till now, their lovemaking had been incredibly beautiful, but safe. For the first time they were making love as Carter and O'Neill and both were lost in the sensations and sheer rightness; there was no going back now.

Jack was lost in the feel of how unbelievable satisfying it was to be inside Carter. He'd spent long and lonely hours fantasizing scenarios built around the few times he'd been able to hold her. Had he imagined taking her from behind on that ship? "God yes, Carter. And I've imagined it a thousand times since then. But nothing was ever like this." Jack's voice was rough and his breath hard and hot on her neck. He thrust hard into her, over and over, driving them both fast and high. He couldn't stop now if he wanted. Sam matched him thrust for thrust, grinding back hard into his hips. She was panting hard and fast into Jack's hand, licking and biting at his palm. Erotic sparks sizzled and burned where their skin touched and neither could get enough.

Sam was burning with need for more. Her clit ached and throbbed. She grabbed Jack's hand and pulled it from her mouth, clamping her lip hard between her teeth, as she pulled his hand down her body to settle his fingers over the hard little bundle of nerves begging for attention. Jack was wild. He increased the force of his thrusts and ran his fingers through her lips but didn't touch Sam's clit. She was burning in his arms and panting heavily, but still he drove her. "Tell me Carter. I need to hear you say it."

Jack's breath was rasping heavily in her ear, making Sam shiver. "Touch me. Please, Sir, I need you to rub my clit."

"Will it make you come? Will you come for me, Carter?"

"Sir. Yes, Sir." Talking was helping. Sam could keep her voice low. It was better than screaming.

"Cover your mouth, Carter. I'm going to make you come." Jack waited until she'd covered her lips with her hand before he pressed his fingers hard on Sam's clit. Jack felt her gasp as she thrust wildly back to meet his next stroke. He rubbed hard at Carter's clit and felt her slick walls grip his shaft as she exploded around him. Lights flickered and flashed behind his closed eyes as he was engulfed in liquid heat. Jack had the odd thought that this gave new meaning to the phrase Fire in the Hole before the searing pulsing of her orgasm drove his own. He shuddered and continued to thrust, slowing gradually until they lay boneless and spent.

"I love you, Carter" he whispered and just registered her "I love you too, Sir" before they both slipped into oblivion.