Janto

Janto is the slash ship between Jack Harkness and Ianto Jones from the Torchwood fandom.

Everything Changes
Jack introduces Gwen Cooper to Torchwood and mentions Ianto Jones, who he says, "Looks good in a suit." Ianto jokes about that being harassment.

Cyberwoman
During a battle with Ianto's old girlfriend Lisa, Ianto is knocked unconscious. Jack gives Ianto a mouth to mouth.

They Keep Killing Suzie
After fighting Suzie Castello, Ianto mentions to Jack in a sexual context that, "Lots of things that you can do with a stopwatch." Jack responds with mentioning that he'll send the others home early and that Ianto should meet him at his office in ten minutes.

End of Days
After Jack is revived from his fight with Abaddon, he and Ianto kiss.

Kiss Kiss, Bang Bang
Jack asks Ianto out on a date while the two are searching an office building. Ianto accepts, as long as it's not in an office.

Adrift
While trying to solve the mystery of Jonas' disappearance, Gwen walks in on Jack and Ianto having sex. Jack later reveals that the two were engaging previously in "naked hide-and-seek."

Fandom
FanFiction
 * Janto at AO3

Twitter
 * Janto hashtag on Twitter

Trivia

 * The ship is considered Torchwood's most popular.
 * After Ianto's death, a shrine was made in the character's honor. Much of the artwork on the shrine is Janto related.
 * Jack is from the Doctor Who universe, Ianto appears in the crossover episodes "The Stolen Earth" and "Journey's End"