mShenko

For those who haven't heard (because, for example, they may actually have a life) mshenko is an "m/m ship" (male/male relationship) between male Shephard (your character, whom you can play as male or female) and Kaidan Alenko from the world of fan-fiction (specifically, fan-fiction about characters in the Mass Effect series of games from Bioware).

Here's a brilliant, if chaotic, take on it from YouTube. Note the subtle mixin of references to the m/m shipping of Sam and Dean Winchester from Supernatural.