Sleeping together to deepen the relationship? You are supposed to take baths together first you dum dum. Honestly these extradimensional people...
Really, the best explanation we get for the transformation device is "I got it at a shopping mall" is... Alright, which shady alley did you go to and who's the mystery NPC that sold you the good? 'Cause that's either really dumb story hax or some really convoluted plot device thing you'd see in a Kamen Rider show. Speaking of which, this is the second time we see Rabbit got broken out of her transformation. This is going to be a running gag isn't it.