Blaine Devon Anderson is a character from the Glee fandom.
- Klaine is a slash ship between Kurt Hummel and Blaine Anderson.
- Anderberry is a friendship between Rachel Berry and Blaine Anderson.
Kurt and Blaine meet in Never Been Kissed, when Kurt spies on the Dalton Academy Warblers, due to a suggestion made by Puck during a meeting of the New Direction boys about how to beat the girls in the Boys vs. Girls competition. Blaine and Kurt have instant chemistry and soon develop a friendship. Blaine gives Kurt advice on how to handle Karofsky's bullying, and goes to Kurt's school to confront Karofsky about his actions, but when the bullying becomes unbearable, Kurt transfer to Dalton Academy and joins The Warblers, resulting in him and Blaine continuing to grow closer. Blaine often acts as a mentor and source of courage for Kurt, before making the transition into a romantic interest. In A Very Glee Christmas, Kurt reveals to Will that he is in love with Blaine, and that Blaine is actually gay. The two perform their first duet, Baby, It's Cold Outside. Then in Silly Love Songs, Kurt admits to Blaine that he has feelings for him. Blaine confesses that he has no idea what he is doing when it comes to romance, and the two agree to stay friends. They remain just friends until Blaine realizes he is in love with Kurt in Original Song (when Kurt sings Blackbird by The Beatles). This is the episode in which they share their very first kiss, and it is assumed that they start dating very soon afterwards. In the episode New York Blaine tells Kurt that he loves him, to which Kurt replies that he loves him, too. Their relationship is taken to the next step in Season Three where Blaine transfers to McKinley because he can't stand to be apart from the person he loves.
Kurt and Blaine share loving looks during some songs and rarely fight, having had had three fights during the course of their relationship so far (The First Time, Dance with Somebody and The Break-Up). They have been dating for over a year, their one-year anniversary was on 15 March 2012. They also lost their virginities to each other in Season Three in the episode The First Time.
In Season Four, Kurt and Blaine's relationship is tested when Blaine convinces Kurt to move to New York in The New Rachel. They maintain their long distance relationship successfully at first via skyping and texting, but with conflicting schedules, things start to slide quickly. In The Break-Up, Blaine surprises Kurt by showing up in New York early. During Blaine's acoustic performance of Teenage Dream, he becomes very emotional, which Kurt notices. Eventually, Kurt asks Blaine what the problem is, resulting in Blaine telling him that he was with someone else back in Lima (presumably Eli.C). Kurt leaves heartbroken and ends up giving him the silent treatment. In The Role You Were Born to Play, Blaine admits to Sam that since the break-up, he hasn't been the same and is afraid that he lost the love of his life.
Now, In the weeks leading up to season 5, it has been speculated that Kurt and Blaine will get engaged. Chris Colfer was spotted on set recently wearing an engagement ring. There were also two songs shot in the past few weeks (All You Need is Love, Got To Get You Into My Life) that lead fans to believe that Klaine is in fact back together
Rachel and Blaine seem to have met before as they are seen talking in the Season Two episode, The Sue Sylvester Shuffle, as friends. The two share a drunken, sloppy kiss in an imprompt game of spin-the-bottle in Blame It on the Alcohol. This is where their relationship sparks, as Rachel claims that she found a new duet partner in Blaine. Afterwards, they sing Don't You Want Me, and they seem to have interest in one another. They go on a date, but when Rachel kisses Blaine while he is in line ordering coffee in The Lima Bean he confirms that he is '100% gay.' They were good friends in Season 3 and starred in West Side Story together. In the fourth season, they barely interact due to Rachel moving to New York for college. At McKinley, members of New Directions go head-to-head in the competitive run to be The New Rachel. Blaine eventually wins this role. Rachel is thrilled to see Blaine several times, during Kurt and Blaine's Skype calls, and also when Blaine visits Kurt, Rachel and Finn in The Break-Up.