Born in Czechoslovakia, De Mae was a member of the Czech high diving national team and injured her spine in an accident when training for the 1996 Summer Olympics in Atlanta, diving from the 10m platform. She recovered from her injury, but did not qualify for the 2000 Sydney Olympics. Her problems persisted, so she retired from professional sports.
De Mae was later persuaded by a photographer to pose nude and eventually to participate in the adult film industry.
De Mae appeared in over 80 adult films. She first appeared on American screens in a series of features for Private Media Group. She eventually returned to Europe, shooting more films but, after a brief period of time, returned to the States.
De Mae was diagnosed with glioblastoma, an aggressive form of brain cancer in July 2004. Fans and fellow porn actors contributed to a medical fund set up for her in Prague, but she died on 9 December 2004 at the age of 27.