A shitty joke in the heartstopper fandom referencing a throwaway line where one of the leads states that he and his boyfriend had sex in a pillow fort.
The joke is usually made by cishet women who fetishize queer men and is featured in edits or YTPs.
Regina: Can't wait for the pillow fort scene to be added into s2 of heartstopper
Kara: ...they're under the age of consent