Yup, that's The Flash on Arrow. This is a photo from the back half of the crossover event.
Added:
Is this leading somewhere before the date even begins?
Added:
Before they head out, Felicity reaches out to Ray.
Added:
Ray appreciates the view he helped to create by sharing the dress.
Added:
The boys are going to be left with their mouths hanging open after seeing this shot!
Added:
This looks like one heck of a personal moment at the office!
Added:
Is he witnessing what's going on with Felicity and Ray?
Added:
What else can Felicity say other than thank you for the dress?
Added:

Arrow Quotes

Laurel: Helena, you don't have to do this.
Helena: Yes, I do. Because once you let the darkness inside, it never comes out.

There are people in this world who deal only in extremes. It's naive to think that anything less than extreme measures will stop them.

Amanda