Fractured Contact by ErmengardeSecret (rated M, which is probably R or NC-17)

[sashocirrione.livejournal.com]

Fandom: DEATH NOTE
Pairing: L/Light
Length: ~6000
Author on LJ: Unknown
Author Website: Fanfiction.net | DeviantArt
Why this must be read:

ErmengardeSecret is known as one of the better Death Note authors, concentrating exclusively on the L and Light pairing. This medium-length fanfic is one of the very best of that lot, combining sharp character insights, interesting dialogue, gentle humor, and extremely hot smut. Even better, it is completely believable, which is a very difficult feat with the L and Light pairing. L/Light fics that manage to be mostly believable for the characters are rare enough; those that manage to be completely believable are almost non-existent, and quite precious.

While Light is alone in his room one night, L hacks into his computer to try to initiate a cybersex session...

Fractured Contact