- See also: Fanfiction involving Kevlly
Kevin and Shelly are both about twelve years old, and are older siblings to main characters. Despite the fact that neither of them appear often, few others are seen their age.
Kevin and Shelly sit together at Cirque De Cheville in the episode "Quintuplets 2000".
As they are the only characters their age, most fanfictions they are in focus on either Kevin or Shelly being in a relationship with a per-introduced character, but usually end up together.
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