This is a clip from the Valentine's Day episode of Smallville. The installment is titled "Persuasion."
A spell is cast on the Smallville episode "Persuasion." Check out a trailer for it now.

Smallville Season 9 Episode 13 Quotes

Tess: You're digging your own grave.
Zod: Then you'd better make sure there's room in there for both of us.

Clark: Thanks, Chloe. You're a life-saver.
Chloe: If by that you mean sweet on the outside and empty in the middle, that's pretty much exactly how I feel right now.