Castiel had recently been taken over by Lucifer, and since then he was far from himself.

you, we're in yours, Sam's and Deans motel room, you hadn't heard from Castiel in a while. Castiel and you had an on/off relationship- it was hard dating a literal Angel of the lord; you'd always have to explain things to him and, due to his obliviousness, you always got mad at him for accidently saying rude things.

Lucifer, /Cas?, smirked down at you. You'd tried to fight him as soon as he appeared in the motel- Sam was at the libary, and Dean was at the bar, leaving you alone- which led to Lucifer taking the opportunity to toy with you. You were on the floor now, since he'd easily overpowered you- you know, being Lucifer and all-. He laughed to himself. "Castiel liked you..." he crouched down, running a thumb over your bottom lip. "just a minor tweak..." he tilted his head "use your tongue next time." he was clearly enjoying teasing you about everything he knew about yours and cas' relationship.