The latest episode of “Lost Girl” opened with Bo and Lauren at long last reunited as a couple, and it’s been a longtime coming, no pun intended (okay, maybe a little). The two wasted no time in getting their horizontal on, with Kenzi out for the better part of the night to a subterranean nightclub/magic show/freak show of some indeterminate sort. Or should I say, a “Subterrfaenean” one, as the venue is occupied by a group of fae-turned-C.H.U.D. that are none too happy to have their space invaded by the likes of a bunch of partygoers. Before you can say “Bloody Mary” three times, the crowd is attacked and one of Kenzi’s pals is AWOL.