Light's manhood presses stronger and stronger against L's hand as it grows. There is not much room in Light's tight trousers, so L's options of movement are limited. He decides on just enclosing, applying gentle pressure.
"Why is your hand in my trousers?" asks Light now, who seems to have regained his composure.
"As I said: we need to stay warm. Since we don't have any other source of heat, our bodies remain the sole providers."
"That explains why you came so close I can smell your sickly sweet breath and why you started massaging me. It stimulates blood flow. But why-" L chuckles.
"I certainly don't have to explain to you the best way to get your blood in motion?" Light doesn't answer, so L explains further: "Sexual stimulation leads to dilation of the blood vessels, causing increased blood flow. There is nothing like sexual stimulation to stay warm, really." There is a moment of silence until L hears and feels the soft laughter of his companion.
"Ryuzaki, this must be one of the worst pick-up lines ever." Light turns his head as far as possible to be able to see L's face and grins at him:
"If you get off on turning me on, be my guest. But don't expect me to return the favour." L shrugs and since Light is facing him he quickly licks him over the lips. He tastes strangely intoxicating, although not at all sweet. Light twists his perfect, soft lips to a frown.
"Ew, that's disgusting! Now I have your sticky drool all over my face!" Light wipes his mouth with his sleeve and spits into his palm, smearing the saliva all over L's face for revenge. But instead of getting back at him, L just smiles and resumes to move the hand that is still cupping Light's crotch. The erection had died down, of course, giving him more space to caress the dormant organ. Light relaxes again as his manhood starts responding, leaning back against L's chest and shifting into a more comfortable position. His face is almost touching L's cheeks, still damp from his saliva. He is fully erect now and the briefs are becoming moist with pre-cum. He grabs L by the wrist.
"Get him out, Ryuzaki. It's starting to hurt." L can feel it, too, Light's hardness pressing against the firm fabric that keeps it in place, while it wants to rise so badly. He obeys by unbuttoning the trousers and pulling down Light's underwear far enough to free the still hardening member. They shouldn't undress because it is too cold, but fortunately this will suffice. Even though L would have liked to see his friend all naked in his grasp. Another time, maybe.
Like every other part of Light's body, his erection is beautiful. The perfectly symmetric shaft gives way to a bulbous crown, that is fully exposed by the foreskin now and dripping slightly.
Light has closed his eyes and L can feel his heart rate going up, as he gently palms his shaft and slides his fist down by the foreskin. He ignores his own arousal that is conveniently unhindered in his spacious jeans. Light exhales sharply as L slides his palm down further, simulating deeper penetration. The shaft and glans are appropriatly wet by now and L's hand is wet, too. Light seems to have endless reservoirs of this natural lubricant. L remembers the taste of his lips and curiously licks some of it off his finger. It doesn't taste the same, but has a salty flavour with also a hint of sweetness. Why the hell does Light taste so good?
Author's note: I hope you liked how the story proceeds. Please let me know what you think. Negative reviews and suggestions / requests for further interactions are also welcome.
I found this picture from the yaoi game "Bound Prince" which is a perfect illustration to this story - right after L licked over Light's lips: www. tegmentum. net / cg014. PNG (without the spaces, obviously)