In order to remove pen from a fabric couch we recommend spraying the area with the heavy mix of Pink Solution liberally.  Then take a pinch of the pink solution paste and apply it directly to the stained area. Work the paste in with your fingertips or a sponge. Leave the Pink Solution on the stain for a few minutes. Pink Solution is more effective when it's wet. Dab out the stain with a wet terry towel cloth.