Lancaster was brought up by her parents who were both regular gym-goers throughout her childhood encouraging a love of fitness. At the age of six Lancaster took up dance, learning tap, ballet and modern but decided to quit at the age of 16 due to her height and deciding aerobics would better suit her frame. Six years later Lancaster became a certified fitness trainer. It was during this time when she was spotted by a model scout who suggested she should consider a career in modeling. Lancaster then also decided to learn about the other side of modeling and began taking photography classes