She is told that they are from a race of beings called the Fae (short for Fairy which covers all magical creatures) and that it seems that she may be one of them. Bo learns that she is a Succubus, a type of Fae that can drain the life force from her victims when engaging in sexual contact. They offer to teach her how to control her urges and discover that she can sleep with other Fae without killing them such as the lead detective who found her named Dyson. Dyson is a Fae shapeshifter werewolf who befriends Bo and eventually becomes her on-again off-again bed partner. Along with Dyson, Bo also beds Doctor Lauren Lewis, a human who helps and studies the Fae at the secret location where the creatures meet.
As Bo joins the Fae and learns their way of life, she learns how to control herself so as not to harm any humans she may get close with. Kenzi sort of joins the Fae as a human since she is BBFs with Bo and is accepted into the Fae community.
Lost Girl was a Canadian production that ran for 5 seasons with 77 episodes that premiered on Showcase and in the U.S. was shown on the Syfy Channel. It was released on September 12, 2010, and ended on October 25, 2015, giving the supernatural drama a good run on Canadian, the U.S., and other television stations around the world. Upon its release, Lost Girl was the highest-rated Canadian scripted series of all time on the Showcase network and brought in a high reception.
As one can guess, sex was a big part of the series since its lead was non-other than a succubus….a sex demon. This was…and still is so far the only time a succubus was the lead in a TV series, something that was very bold and very refreshing to see. Sure vampires, witches, and even werewolves have led TV shows before like Vampire Diaries, Charmed, Teen Wolf, and hell even the devil in Lucifer, but we never had a succubus before. Also Bo has the acknowledgment of being maybe the very first bisexual lead character in a TV series….at least as far as I know. Again this is something bold and refreshing to see on television.