Brittany's character traits include her finding recipes confusing, mistaking her nipples for pepperoni, thinking her cat, Lord Tubbington, is reading her diary, and not knowing her right hand from her left.

[citation needed] The character has also received positive reviews related to her romantic storyline with her closeted best friend Santana (Naya Rivera).

She joins the glee club, New Directions, with her friends and fellow cheerleaders Quinn Fabray (Dianna Agron) and Santana Lopez (Naya Rivera).

[4] Following the club's victory at sectionals, Sue renews her effort to bring them down, and enlists Brittany and Santana to break up co-captains Rachel Berry (Lea Michele) and Finn Hudson (Cory Monteith).

She also briefly dates Kurt Hummel (Chris Colfer) in the episode "Laryngitis" as he wants to appear more masculine to impress his father and he is the only guy she has not made out with in the school.

Santana rejects her, so Brittany attempts to make her jealous by dating fellow glee club member Artie Abrams (Kevin McHale).

[9] Although Santana fears being ostracized by the McKinley High student body for being in a same-sex relationship, she confesses her romantic love to Brittany, feelings which are reciprocated.

Brittany runs for senior class president in the third season, starting in "I Am Unicorn", and wins the election in "I Kissed a Girl", defeating Kurt in the balloting.

Brittany reveals to the glee club she has been offered early admission to MIT and delivers an emotional goodbye, as she will be leaving after Regionals.

At the beginning of season six, Brittany returns with Santana and the rest of Glee club alumni to McKinley High School in "Homecoming" to help Rachel and Kurt recruit for New Directions.

In "Jagged Little Tapestry", while the alumni stick around for another week, Brittany is surprised by Santana's marriage proposal and gladly accepts.

Before the ceremony, Sue arrives with Alma, who she has helped to realize that although she may not believe females should marry each other, family is the most important thing, leading her and Santana to reconcile.

Brittany and Santana return briefly in the last minutes of the series finale "Dreams Come True" for a last performance with the rest of the Glee Cast to take a bow.

At the same time, the show was looking for a third cheerleader, they originally wanted to have the third be African American, but Morris ended up landing the role of Brittany Pierce.

'"[21] At the 2010 Television Critics Association Summer Press Tour, Murphy stated that Brittany would have "big storylines" in the new season, as viewers want to know more about her.

[19] Brittany's character traits include her finding recipes confusing, cheating off intellectually disabled classmates, thinking her cat is reading her diary, and not knowing her right hand from her left.

[23] In the episode "A Night of Neglect", Brittany participates in an academic decathlon as a seat warmer, but surprisingly ends up contributing to the win due to the fact that she is somewhat of an idiot savant on the topic of cat diseases.

At the Paley Festival Glee panel in March 2010, Murphy stated that Brittany and Santana would be seen to make out during the show's first season.

Murphy told Morris and Rivera that Glee would not push relationships to appease the show's fans, but would only pursue those which were "organic and natural.

"[19] Later in 2010, when interviewed by After Ellen and discussing the large lesbian audience of Glee, Ryan Murphy confirmed that season two would contain at least one kiss between Brittany and Santana.

[29] In the season finale, she sings solo lines in the glee club's Nationals performance of the original song "Light Up the World".

It was the most adrenaline-pumping musical number the series has produced: intricately choreographed, expertly shot and edited, perfectly woven into the story, and performed exquisitely by Heather Morris.

She deemed Brittany "brainlessly brilliant", and thanked the Glee producers for creating her: "Never before have we had the pleasure of enjoying such a ridiculously dumb—yet always loveable—character on television.

"[31] When a promotional clip for the episode "Sectionals" indicated that Brittany and Santana had slept together, Dorothy Snarker, when writing for lesbian entertainment website AfterEllen, praised the pairing and referred to it by the portmanteau "Brittana".

[2] Snarker called the two her "new favourite Glee pairing", and commented: "While Heather Morris (Brittany) and Naya Rivera (Santana) have had minimal screen time, they’ve made it count.

[34] Robert Canning of IGN was initially concerned that the episode would diminish Morris' appeal by elevating her from a background role, but was ultimately pleased that it managed to retain her "fan favorite" secondary character status.

",[36] Ann Oldenburg of USA Today questioned whether Glee had gone too far by its depiction of Brittany and Santana kissing and their reference to the sexual act called "scissoring".

[37] Christie Keith, in writing for the lesbian and bisexual media website AfterEllen, suggested that "Duets" was the "queerest episode of any series that's ever been on television", and stated that she was moved to tears by the final scene of Brittany forlorn without Santana.

Watching Artie, and eventually the rest of the club, work to keep Brittany's belief intact was truly in the spirit of Christmas and should have been made into a fuller part of the episode.

"[40] In January 2010, Morris and her co-stars won the "Screen Actors Guild Award for Outstanding Performance by an Ensemble in a Comedy Series.