Xander swore even as he writhed, wishing there was some way to make Spike stop. The damned vampire had done this before-tickling him into insanity. Last time, Spike had very definitely won. This time, however... It only took a moment of laughter-blurred thought for the boy to see the perfect opportunity for victory.

Spike edged one hand towards Xander's torso, intending to lay waste to the boy's sensitive ribs. He'd almost reached his goal when, without warning, incredibly wet heat engulfed his cock. Sharp expletives flowed unbidden from his lips as the vampire realized that he'd failed to notice Xander repositioning himself...

Xander wondered briefly what it meant about him that having Spike inside his mouth like this ranked high in his top ten favorite things to do. Then again, Spike himself was at the top of that exalted list, so maybe it wasn't so surprising. There was something, though, about the cool, coppery scent of the vampire that made Xander's soul ache. The inhuman intensity of Spike's presence within him, around him, touching him...sometimes Xander felt like he was being burned alive by it. Right now the taste of Spike on his tongue was washing his mind clean, removing thoughts of anything else. What else was there, but his lover?

Spike shuddered against Xander's thigh, startled by the sheer ferocity of the human's assault. Hot suction, damning tongue and devilish fingers were sending the vampire straight to heaven. He was spinning out of control, as though he'd not been pleasured twice by his lover already. The blonde searched blindly for Xander's own straining erection, needing something to distract him before he lost it completely. The challenge of mirroring Xander's every move would do the trick, he was sure.

Xander swallowed convulsively around Spike when incredible coolness took him in. A slick, muscular tongue pressed against the underside of his cock, urging him to resume. With a shaky moan, he did so, pulling back to stroke at Spike's foreskin with his lips. Spike did the same, squeezing Xander's bare glans and licking away the precome that accumulated there.

Xander focused on Spike, on massaging the vampire's swollen testicles as he swallowed that thick shaft once again. Xander felt Spike growl in response. Then the smooth, sharp cheek that lay against his thigh began to shift, turning harder. He spared a glance down, eyes widening as he took in the sight of Spike's demonic face...yellow eyes...fangs surrounding his cock...

Spike let his fangs just barely brush Xander's erection, continuously stroking the sensitive head with his tongue. The boy shuddered once, and then fell still--except for his own mouth. The vampire's eyes rolled back into his head as Xander sucked harder, obviously aroused by the danger of being taken in by a demon.

Xander could feel his orgasm building, shoved into the present by the bloody promise of Spike's nature. He was determined to bring the blonde with him into whatever screaming, mind-blowing place he was going, so the boy redoubled his efforts, dragging fingers over the vampire's sensitive hole as he worked the pale cock in his mouth.

Spike felt the first shot of searing fluid hit the back of his throat just as his own body was hurled into ecstasy, jerking and shuddering with the intensity of it. The faintest taste of copper drifted through his mouth where Xander had brushed against one of his fangs, breaking the skin just enough for a single drop of blood to well up. The flavor was enough to send Spike's body into convulsions again, spilling yet more cold release across Xander's waiting tongue.

Xander held Spike until the last trembling shudder passed and the vampire lay still upon the bed. Only then did he roll away, carefully extracting them from their twined position. Ivory arms encircled him as he lay back down, head cradled in the crook of Spike's neck. "Mmm...Sixty-nine," He murmured, reaching for a blanket.

Spike giggled.