The L.I.L.ies (Ladies Interested in Lambda Psi Delta) is the official interest group of Lambda Psi Delta Sorority, Inc.

The purposes of the LILies group is to: (1) educate each prospective woman about the organization, (2) encourage the involvement in service programs and (3) give each LILy the opportunity to learn more about her fellow LILies, both at the chapter level and nationwide. As a LILy, each woman is paired with a Soror who serves in a nurturing role on the journey to Sisterhood.