Ursa Major, Ursa Minor

Chapter Twenty:
Jayne stumbled against the door to the infirmary when River yanked his T-shirt out of his pants and bit his chin.

“Oh go se,” he groaned and automatically tightened his grip on her thigh. His fingers curled inward beneath her skirt and had to force himself to keep moving. The passenger dorms were only so far away…

“Twenty yards,” River murmured. Her hand slid beneath his shirt and along his bare skin. Jayne stooped down, lifted River off the floor, and resumed his unsteady pace toward her quarters.

“Twenty yards ain’t nothin’,” said Jayne. He grinned and kissed her again—chasing her giggles with his tongue and turning them into groans of pleasure when he caught them.

River didn’t even bother trying to point out his double negative this time.

They tripped into her room and landed with a bang on the corner of her bed. Or rather, Jayne’s back slammed into the corner of her bed. Ignoring the pain, Jayne tossed River onto the top sheet, closed the door, and returned to that place on River’s neck that made her go all squirmy.

He rested on his side—not wanting to crush her—and ran his hand across the curve of her hip as he kissed her.

River was the one to take their little make-out session further. With her hands already buried beneath Jayne’s T-shirt, she curled her fingers around the soft fabric, bunched it up in her fists, and tugged upward as hard as she could.

Reflexively, Jayne lifted his arms and allowed her to remove his shirt. River flung it across the room and pushed Jayne onto his back to stare at him properly.

“Mm,” she said.

Jayne crooked that grin at her that just oozed sex and worked one hand beneath her blouse. He dragged his other hand up her skirt and ran a teasing finger across her panty line.

She was soaking.

His hips gave an involuntary thrust—either at the fact she was so aroused by him, or because she’d just made a hickey in the middle of his chest.

River swung her leg across his hips to straddle him and Jayne let her swat his hands away so she could pull her blouse over her head.

Nope… No bra.

“Never wear one,” River admitted and let Jayne look his fill of her pale breasts and dark nipples. After all, fair’s fair. She’d been staring at his chest ever since his shirt landed on her lamp. Fascinated by his musculature and how the scar she’d given him was so thin and delicate looking—considering the violence behind its creation.

“Yer so beautiful,” he whispered. River could tell without reading him that he was too worried to speak any louder—worried he might scare this moment away with his deep voice.

River traced the strong lines in Jayne’s face and lingered on the scar on his cheek. “You are beautiful as well.”

He kissed her again—memorizing her taste and the feel of her lips as they moved and sucked against his. He could tell her body was strung about as tight as the e-string on his guitar—not just by the way her tongue slid against his or how her nails ran down his tattooed shoulder. Mostly, it was the pressure she was using with her hips. That same grinding motion from just two days ago when they were on Kerry.

Belt…

Jayne broke their kiss long enough to suck in a lungful of air and toe his boots and socks off. River grinned widely at him with kiss-swollen lips and let her nimble fingers unbuckle his belt.

The boots landed with thuds. The belt made that visceral noise it always did when he yanked it out of the loops of his pants.

His belt buckle clanked against the wall and landed somewhere near his T-shirt.

River unzipped the back of her skirt and tugged it off and Jayne took the opportunity to yank his trousers off.

Both in their under things now, they stopped and took in an eyeful. River’s panties were pink—to match her skirt. Pink with a little white bow just centered on the elastic band. It seemed fancy compared to the cheap white boxers Jayne wore, but that was the furthest thing from River’s mind.

She was beginning to feel a surge of doubt about what Inara’s anatomy books said.

Jayne understood her raised eyebrow and gaping mouth well enough to just shrug. “Oh, I’ll fit, sweetheart.”

River’s eyes darted up to his—then back to his John Thomas. She held up three fingers. “This is all that fits when I.. I…”

It was Jayne’s turn to look surprised. “Ya do that?”

“’If everyone would just stop gorram sexin’ all the time,’” River mimicked his voice from that thought he had so long ago and shrugged (the move doing all sorts of interesting things with her breasts). “You weren’t the only sexually frustrated one on this boat.”

Jayne ran a finger across her through her panties and twitched an eyebrow. “Makes sense. Want these off?”

River nodded shakily and closed her eyes at the feel of his fingers. “Yes, please.”

“Take mine off, ai ren?” Jayne asked as he eased on of her long legs free—untangling the ribbons around her shin at the same time. He repeated the same gesture with her opposite leg and let her panties and new ballet slippers whisper to the floor. He was so focused on the task that he didn’t notice when his own underwear was removed and forced to join his growing pile of clothing atop River’s desk lamp.

Jayne flipped River onto her back and draped her thighs across his shoulders. She gave a surprised yelp that was cut off when his mouth fastened on the middle of her left thigh.

“Shit,” River swore.

Jayne laughed and deliberately ran his tongue across her clitoris. She swore again and fisted her hands in his hair.

“Didn’t know you fer swearin’ like that, ai ren.”

River hissed and pushed his mouth back against her. Jayne indulged her with a grin and proceeded to give her another reason to love his mouth and fingers. Jayne pressed the flat of his tongue against her clit and crooked his middle finger inside River’s wet heat and felt that first tell-tale fluttering of her inner walls.

River’s breathing had gotten to the point where she was seeing spots of light. She barely noticed when Jayne shifted them again and gently lowered her against his John Thomas. When she felt him at her opening, the spots of light were replaced by Jayne’s strained face.

“Jayne…”

He let out a shaky breath and sat up a bit to change his angle. River cupped his face in her hands, kissed him hard, and dropped herself onto his hard length until she could feel him all the way inside her. She gasped and dropped her forehead against his. They shared another one of those soft kisses and just felt. Full and surrounded, warm and content… Jayne pried his heavy eyelids open and set those baby blues on River’s rapturous face as he ran his thumbs along the undersides of her breasts.

Then he moved. His hips slid between her thighs and River mentally damned her own fingers for not feeling nearly as good. Jayne moved slow at first to let her (and himself) get used to the rhythm and being a dancer River caught on fast. Jayne wrapped one hand in her wild hair and blanketed the other along her spine.

This was so much better than River ever tried to picture. The movement, his hands, his lips, his John Thomas buried inside her woman-warmth. She felt stretched to the limit and it hurt and felt fantastic at the same time.

“Oh God,” her eyes flew open when that feeling began again. Just like the very few times it happened before, it started at the top of her head and trickled down, down, down her spine beneath Jayne’s large hand and finally to the most stimulated part of her body. Her inner muscles clamped along his length as he started a new thrust and River got to hear the most beautiful sound she’d ever heard.

Jayne whimpered.

He automatically released her hair and moved that free hand to where their bodies were joined, With each move backwards, Jayne pressed his thumb against her clitoris.

Their eyes locked.

River released her death grip on Jayne’s shoulders to smooth the tension and sweat off his brow even as her spine shook with sensation and she struggled to keep up.

They were both so close.

Jayne sealed his mouth against hers and traded positions again—racing them both to the finish line with pounding force. Both muffled their panting and outcries—breathing harshly through their noses as their mouths kept moving in time with their bodies.

The white haze of orgasm blanked out River’s mind seconds later—her whole body snapped and she tore herself away from Jayne’s lips to bite down on the tendons of his neck to better muffle her sudden scream. He cast his eyes up to the ceiling and crushed her against his body as he rode out her climax.

She dragged her nails once down his back and felt the muscles in his buttocks tighten against her heels. He came just as hard—groaning into her hair and landing halfway on top of her when his arms gave out,

River carefully dropped one leg from around Jayne’s hips and gasped as her muscles twitched around his spent John Thomas in aftershocks.

Jayne licked his dry lips and slid out of her. “Gotta get under the sheets, ai ren,” he whispered.

They did just that without breaking skin-on-skin contact. Beneath her plain white sheets, River Tam curled up inside the warmth of Jayne Cobb’s arms. She fell asleep with his lips pressed gently against her temple and a few murmured words that her exhausted mind didn’t quite catch.

TBC

Translation:
Ai ren: sweetheart/spouse—I looked up bao bei and found out that it meant "darling." That seems too Core-ified for Jayne to say.