Maxine and (Crush) bet against (Oc), and (Open). They made a bet that Neil couldn't make a cool new scientific project. But... He did! Having Maxine, (Crush), (Oc) and (Open) there to watch.
Neil placed his two experiments next to each other and somehow the mixtures both fell on the ground, and mixed together, causing a cloud of smoke to fill the area. And everyone felt different.

(Open) is in Maxine's body, Maxine is in (Open) body
And
(Crush) is in (Ocs) body, (Oc) is in (Crush's) body