Princess Bubblegum and Marceline the Vampire Queen, two of Adventure Time’s most popular characters, get the ending they deserve in the series finale. After years of buildup, it’s a perfect ...

It becomes clear very quickly that Marceline and Princess Bubblegum care for another in a deeper way; they're friends, but something else is there, too. Then, Princess Bubblegum kisses Marceline ...

'Adventure Time' Finale Confirms Marceline and Princess Bubblegum's Relationship After 10 Seasons. Published Sep 04, 2018 at 1:50 PM EDT Updated Sep 04, 2018 at 1:52 PM EDT.