My Little Husband

Trafalgar Law suddenly finds himself married to a naive teen. The teenager Luffy changes Law's whole equation. Luffy is ball of surprise and wont stop shaking the doctor's life. More Law learns, the more he falls in love with his under-age husband. Now Law not only has to raise his husband, but also refrain from touching Luffy until he is eighteen! AU(Fluff, marriage,happy ending).