For Dynamic Duos the 2 colors to use are Real Red and Basic Black with a dessert option of Valentine theme, and the sketch is this weeks Paper Players challenge. I used retired sets for my card and even though it says "heart full of thanks" I think it could still work for a Valentines Day card, don't you?
Supplies used(all supplies SU unless otherwise noted):
Stamps: Valentine Defined, Lighthearted
Paper: Real Red, Basic Black, Whisper White
Ink: Real Red, Basic Black
Accessories: Big Shot, Square Lattice EF