|Intimacy Level:||Mother/Daughter relationship|
Becky and Sue first meet when Becky tries out for the Cheerios in Wheels. Will Schuester is shocked when Becky is admitted to join and immediately suspects Sue of something bad. However, it is then revealed that Sue has a handicapped sister named Jean, whom Becky reminds her of. She and Becky bond to the point where Becky appears to be Sue's very close friend.
Sue first meets Becky when she tries out for the Cheerios. At first, she mispronounces her last name as Johnson instead of Jackson. After Becky unsuccessfully tries to skip, Sue stops her and welcomes her to the Cheerios. Will suspects that Sue is up to something. He later spies on Sue and sees her encouraging Becky harshly to skip. He accuses her of being mean but she says that Becky just wants to be treated like everybody else.
Sue informs the Cheerios that they need to be more like Madonna. In homage to her, she tells them that she no longer acknowledges that any of them have last names. She informs Becky (whom previously she always called Becky Jackson) that she is now just Becky, to which Becky claps excitedly.
Becky is first seen in Sue's office with Santana and Brittany as Sue explains the 'Sue Sylvester Master Cleanse' recipe. Becky displays a little bit of disgust at it. She is later seen getting weighed and it's revealed that she has lost two pounds to which Sue congratulates her.
As of Season Two, Becky takes on a more prominent role as Sue's assistant. She is first seen with Sue at the Cheerios tryouts when Finn auditions. Becky and Sue both display disgust at Finn's tryout.
Becky informs Sue that the New Directions are performing Britney Spears at the assembly to which Sue instructs her to use that citizen's arrest they practiced.
Becky dresses up as Sue for Halloween to which Sue says that her costume is outstanding. Becky is given Sue's megaphone and told to yell at some fatties. Sue states that next year when Becky dresses as her she will need to be clutching a local Emmy to which Becky expresses happiness.
When Sue assumes role as Principal, (its assumed that Donna (Figgins secretary) was fired) Becky is given the role as her secretary.
Sue calls Becky in to give her invitations to post. Later, Becky watches on as Sue is visited by her mother, Doris Sylvester.
Becky assists Sue in ruining Christmas at McKinley by stealing the Secret Santas, and replacing the tub with a tub filled with only Sue's name. Becky and Sue later become the Grinch and Max the Reindog to trash the Choir Room.
Sue instructs Becky to hand out chicken cutlets to the Cheerios to enhance their bust. Both later purchase a giant cannon and Becky smashes the wine on it.
Becky plays the xylophone before Sue gives her message about Will and his drinking problem.
Becky is a part of Sue's rumor group. She gives out the rumor filled newspapers to all the students.
Sue kicks Becky out of the Cheerios, because Becky reminds Sue of her sister who died. Will is angry about what Sue did to Becky and confronts her in the teachers lounge. The glee club organize Jean's funeral and Sue has a change of heart. She apologizes to Becky and asks her back into the cheerios, where Becky accepts and the two share a monumental hug.
Becky once again becomes Sue's assistant and brings her the poll numbers for the election campaign. Sue later informs Becky that she is co-captain with Santana Lopez much to Becky's annoyance.
Becky films Quinn's rant against Mr. Schuester for Sue's campaign video.
Becky consoles in Sue about her feelings for Artie. Sue thinks Becky can do better. When Artie tells Sue that he isn't interested in dating Becky she tells him to treat her like a person and tell her. Later when Becky is down about Artie not reciprocated her interest, Sue grabs out some ice cream and turns on some TV. She tells Becky to take her hand because they will get through it together.
In this episode, Coach Roz takes over the Cheerios briefly after Becky; unbeknownst to Sue files a complaint. Becky is fan of Roz's work unlike Sue. Later when Becky is injected Sue with pregnancy hormones, she fesses up to putting the complaint in about Sue to which Sue informs her that she knew. Sue however isn't angry with Becky who believes that Sue has been distracted from the Cheerios. Sue thanks Becky for the feedback and Becky tells that Sue that she is going to be a good mom.
Once Sue announces the nominees for Prom King and Queen, Becky throws a rage due to not being nominated. Sue recalls her attacking xylophones and attempting these rage tactics due to not being nominated. Sue states that she didn't get nominated because of her poster (she misspelled "vote" and wrote "veto" instead), and calls her a bitch, meaning it as a compliment. Sue wanted her to help with the punch bowl, but denies and attacks another one of Sue's xylophones.
After seeing Becky and Puck with the cardboard crowns, Sue says that Becky is the real queen, no matter who gets elected Prom Queen. Becky then tricks Sue so she and Puck could spike the punch bowl.
Before announcing the elected class president, Sue requests Becky to give off a tune from the xylophone. However, there's an awkward silence due to Becky stopping her seconds prior. Sue says "No? Okay then," and goes on to announce the senior class president which is later revealed in the episode to be Blaine with his companion, Sam.
It is shown that Sue got Becky a Christmas present. It's a really nice, expensive sweater, but Becky doesn't accept it. She says she would rather get a man for Christmas. Later on, they are seen looking in the Rose's window, smiling because of the joy they gave to Millie and Marley, by giving them an amazing Christmas.
In this episode Becky is supporting Sue in her feud with Blaine by helping her acting and dressing like Nicki Minaj.
A few days after the lockdown, Mr. Schuester and Coach Beiste are seen talking in the tacher's longue when Sue walks in with some donuts for everyone. She over hears Will and Beiste discuss what will happen when they fined the suspect, which prompts her to say that no student will be expelled because she’s the one who fired the gun. Later on, Sue tells Mr. Figgins her ‘fake story about how the gun went off’ that she has a registered gun named ‘Uma Thurman’ and that she fired it on the wall but it fell making another gunshot. Mr. Figgins didn’t believe her story because bullet leaves bullet marks but Sue insisted that she moved some poster to block the marks. Sue then took her punishment, which is being fired. Later, when Will confronts Sue about what happened, a different scene was shown that Becky is the one that brought the gun because she was afraid of the world and she needed protection. Sue tells Becky to give her the gun but it accidentally fell, firing two gunshots that traumatized the school. It was revealed that Sue protected Becky from expulsion.
Coach Roz Washington calls up Blaine and Becky and notice that Sue's reason of bringing a gun wasn't actually normal and thinks that Blaine and Becky put a hex on Coach Sue. Therefore, Coach Roz asks them to do an oath so they will not hex Coach Roz. Blaine notice Becky's behavior and asks her if she knows anything about the gun shooting relating to Sue's fire but Becky kept the secret and furiously pushed people and a xylophone, making Blaine suspicious.
Sue is seen sitting on the bleachers watching as Cheerios practice, Becky walks to her and tells her how horrible Roz Washington is treating her in the Cheerios, and convinces her to come back to take her spot. However, Sue denies the offer and says that she doesn't miss the girls at all; this leads her to sing Little Girls in a dream sequence. When she snaps back into reality, she tells Becky that she's not coming back, Becky is seen sad and walks away from her.
- Becky dressed up as Sue for Halloween in 2010.
- When Becky asked if Sue's baby is a boy or a girl, Sue answered that it will be a girl 'just like you,' because her baby will be born with down syndrome.
- They both have given the other advice and support on various topics.