Wenny

Wenny is the het ship between Wendy and Danny from the Monster Buster Club fandom.

Canon
At the beginning of the series, it is clearly hinted that Danny got a crush on Wendy and she seems to be aware of it. In multiple episodes, Danny usually tries to impress Wendy by doing whatever she asks him to do.

Season 1
In "Mindreader", Danny gently greeted Wendy when she entered the room. But due to the rumours she heard about him still sleeping with his teddy bear and wearing dippers, she then goes out of the room looking disappointed while her friends laughs at Danny.

In "Dog Daze", Wendy kindly asks Danny to take care of her dog Matisse while she is on a ski trip with her parents and Danny immediately accepts in order to impress her. At Wendy's house, Danny comes to pick up her dog, Wendy tells him she is really grateful for what he is doing for her and Danny tries to kiss her but fails in doing so. At the end of the episode, Danny returned Matisse to Wendy late, after Danny shows her what he teached to her dog, she looks angry at what he did and she slams the door at him while saying she doesn't want to see him again all day.

In "Battle of the Bands", Danny is seen standing right behind Wendy at concert.

In "World's Toughest Kid", Danny accepts the challenges given by a new student named Brian. Wendy even admits to her friend she thought Danny was tough. After Brian demonstrated his strength, Wendy lovely compliments him on his force making Danny jealous.

In "Comic Books Heroes", on a mission, Danny saw Wendy and tries to get her attention but fails. At the clubhouse, after creating special glasses to avoid getting brainwashed, Danny felt a bit embarrassed because he didn't want Wendy to see him like that.

In "Pipe Dreams", Danny looks lovingly at Wendy. While being on sewer sightseeing, Wendy grabs Danny's arms firmly after she have heard a scary story.

In "Trick or Treat...Or Alien?", Danny enters a haunted house in order to impress Wendy. After he got stuck in the house, Wendy felt bad about it and even cries saying it's her fault if Danny got lost forever.

In "A Matter of Principals", an alien mimicked Wendy's appearance to be able to manipulate Danny. Danny got really happy when Wendy talks to him saying he's a cute genius. Near the end, Wendy tells him wickedly to do something when the alien who copied her appearance was facing her.

In "Outcracker's Bandland Galaxy Tour", Danny is seen following Wendy and her friend while holding two smoothies who are possibly for Wendy and her friend.

Fanon
Many fans appears to like this ship despite the fact that Wendy is sometimes annoyed by his presence. Wenny is also one of the most popular ships within the fandom even though this ship doesn't get a lot of attention due to ships like Dathy being more popular among fans. Some people thinks that Wendy might have feelings for him since she has shown various hints of attraction when Danny does something she likes, but it hasn't confirmed if his feelings are reciprocated.

Trivia

 * Whenever Danny does something she can finds incredible, she will either be nice to him or annoyed by his attempts.