What happens next?

How to get pen stains out of clothing
Buy a stain remover meant for ink stains.
Look in the laundry aisle at your local grocery store or shopping center and see if you can find a stain remover that says something like " removes ink stains " or " eliminates pen stains " on it.
Blot the ink stain using a damp cloth before you apply the stain remover.

Choose from: (a). Try to lift as much of the ink stain as you can using just the cloth. Apply the stain remover to the pen stain.; (b). Use a soft, cotton rag or paper towel to blot the stain. Avoid spreading the stain remover on the fabric.; (c). Do not use hot cloths or anything made from plastic and rubber. Use a towel to absorb any extra moisture or squeeze the stain remover out of the cloth before blotting and rinsing it.; (d). Use a cloth that is absorbent and only for ink stains, not a standard newspaper. Before you use a marker or a toothbrush to dab ink stain remover, blot the stain with warm water.;
(a).