Here's going to be a couple of short things that could've happened in the cage if Lucifer was bored enough x
Or, in which Lucifer really does wear Sam to prom.
Sam knows that he is dreaming when he closes his eyes in hell and opens them in the stereotype of an American gym, wearing what seems to be a tux and some uncomfortable shoes.
There are glittery balloons everywhere and a line of tables and girls floating around in sparkly dresses and way too much glitter.
And he's not dreaming. Because Amy Westwood is holding his hand (like he can remember her doing) and he knows what happens next.
Only it doesn't.
Instead he feels Lucifer rise up inside him, wrench his hand away from Amy's and stalk over to the nearest punch bowl, waving a hand over it. He then storms over to the dance floor, conveniently as the music starts to play, grabs Abby Collins and starts dancing as though he is the possessed one, not Sam.
Sam wonders how it is that he opens his eyes back in the cage to find that this is the first time that Lucifer has ever spiked a punchbowl. He didn't think that this would be what it was like down in the pit when he thought about throwing himself down here, and he's not sure if it would've made him more apprehensive or not.