The pair tied the knot at Witherspoon's ranch in Ojai, California, in March and her body art, which depicts two birds either side of a star, is said to be representative of their relationship.
'She has had the star tattoo for a few years,' a source told Us Weekly. 'After she and Jim got married, she added two birds - one to each side of the star.
'She had wanted to do something new and different for a while. In some ways, [the bird tattoos] kind of symbolized their new life and love together. People consider Reese to be such an All-American sweetheart so it is more unexpected for her to have ink.
'She loves it and so does Jim.'