There is a story behind this fic, or pair of fics I should say. Basically, one night I got bored and started writing an Alle/Halle oneshot for a friend (It's her favourite paring and there are no fics for it ANYWHERE). She got impatient (she has an attention span of about 3 seconds :P) and demanded it off me when I'd only written a paragraph. We then both proceeded to finish the fic!

Bearing in mind I know next to nothing about about Gundam00, I think I did ok. This chapter is mine.

Disclaimer: I don't own Gundam00, or Allelujah/Hallelujah Haptism.

Warning: This fic contains yaoi, and swearing. The warning is there for a reason. Heed it.

Allelujah Haptism exhaled deeply, unfastening the safety harness of his pilot seat. That battle had been a difficult one, and sweat was dripping from his brow. He needed a shower, and a change of clothes. The sooner he got out of his jumpsuit the better.

Within minutes he was in the bathroom, peeling off the suit to reveal tanned, muscular skin. He glanced into the mirror, and his reflection smirked back at him.

'Hey Alle. Tough day?' Sneered Hallelujah. Allelujah merely turned his back on his obnoxious reflection, and switched the shower on. Stepping under the stream, he allowed hot water to pound down onto his head, washing away the day's tensions. Rivulets slid down his body, massaged him, but it still wasn't enough to banish all his stress. He sighed and leant back against the shower wall, taking his penis in his hand. He began to pump away, the dripping heat of the shower enhancing the experience. Pleasure began to slither through his body, and he clenched his eyes shut, quickening his pace.

Suddenly he felt a hand on his shoulder, and he started.

'What the fuck..?' he was looking straight at Hallelujah, who appeared positively feral. Alle let go of himself with shock, and the hand on his shoulder gripped tighter, pushing him hard against the wall. His other half began to caress the erection he had just forgotten about. The surprise and pleasure made him gasp, and at this the friction sped up. Hallelujah was pumping faster.

As Allelujah's moans began, Halle clamped his lips down on his mouth, muting the sound. Their tongues locked and explored each other, hungry for more. Halle bit and tugged on Alle's lip, roughly searching the submissive man's mouth. Alle continued to whimper into him, begging for more. Hallelujah's hand came up to twist itself through Alle's wet hair, already breaking off the fierce kiss. Before Allelujah knew what was happening, he was being pushed down onto his knees.

He felt something brushing against his lips, and when he opened his eyes he saw Halle's dick right in front of him. Alle took the flesh into his mouth, and began to lick and nibble along the shaft. Hallelujah's fingernails dug into his shoulder, almost drawing blood with their ferocity. In response Alle took the length full in his mouth, and felt it slip down his throat. Fighting back the gag reflex, he began to move his head up and down over the hard muscle. Halle moaned hoarsely, as the pleasure shot through every inch of his being. His double was doing amazing, delicious things to his arousal, and he could feel pressure building in his groin. He pulled Alle from his work roughly by the hair, and pushed him to sit against the wall

Alle looked shocked, as Halle started pulling on his own erection. As he felt his impending climax, he moved so that he would spill over Alle's face and chest. The warm, salty liquid dripped thickly of the gentler man's chin, washing away in the still-running stream of water. Within moments he was being pulled onto his feet again, by his doppelganger.

'You better brace yourself.' He said, turning Alle round to face the wall. He sucked on his fingers for a moment, before plunging his saliva-covered digits into Alle. The action was greeted by a sharp grunt, and Alle's hips bucked forward uncontrollably. Halle explored the cavern briefly, opening his lover up, before removing his fingers. Alle felt horribly empty for a moment, but the feeling didn't last long as Halle sunk his penis into him. They thrust awkwardly for a moment, finding a rhythm, but soon felt the tingles of satisfaction running through their bodies. The pace of their sex quickened, both men crying out as they began to climax. Alle came onto the tiles, moments before Halle did the same inside him. He pulled out, leaving Alle to drop to his knees, shivering, and disappeared as quickly as he had arrived.

The next chapter is my friend's version, and it is quite a bit different. Also longer, cos she knows what she's talking about when it comes to Gundam00 .

Much love for reading, Vix