They were originally planned to head a spinoff of The Girls Next Door titled The Girls Next Door: The Bunny House, but they were asked to move out after Hefner learned they had boyfriends.
In December 2018, Kristina and Karissa announced they signed with Brazzers to make hard core porn and that they would film scenes together.
Unlike previous centerfold twins, they earned consecutive months as Playmates, but shared a single centerfold.