Dean, Sam and Cass had intel that a band of girls where half demons in disguise and went to investigate. They entered the club standing close to the stage.

When the girls started playing he felt hypnotized by their singer and guitar player

They started playing ‘I am going to cast a spell on you’ and it truly felt like it, he couldn’t stop starring.

As she sang and danced she caught his eyes and grinned showing her fangs. She didn’t look away. She sang

With this little cobweb potion. she approached him

You’ll fall into dark devotion she kneeled down on the stage being right in front of him making his eyes widen

If you ever lose affection her hand caressed his cheek and he couldn’t help but blush and lean against it

I can change your whole direction she got up and away from her making him lean forward trying to chase the feeling

Dean, you okay?

Sam asked, Dean gulped down his adams apple bobbing and nodded

…Y-yeah clears throat I am fine Sammy

after the event ended they sneaked inside and saw them standing on the stage waiting for them