Merano Cup
Lafuente began skating at age four, after her parents took her and her sister to a newly opened rink in Madrid. Carolina Sanz and Ivan Saez were her coaches for much of her career. In the 2003–04 season, Lafuente made her international debut as a novice, and finished with the bronze medal at the Merano Cup, an event she would win one year later. She began competing in junior internationals in 2005-06.