Lol, I just have to point out that the second photo was her giving birth to that ghost's baby
Delilah and Steven were on a date on the night of the full moon. They went and ate dinner at The Moonlight Falls diner then went to see a movie as they were in front of Delilah's house ready to end the date, they decided to have a little fairy fun. Full of magic and frostbite. A comical way to end their magical first date.
* I'm trying to get some screenshots up just bear with me* TECHNICAL DIFFICULTIES