Sandra de Marco, professionally known as Sandra Mark, Stepanka, and other aliases, is a retired Czech pornographic actress and adult model. Born on December 22, 1982, in Brno, Czech Republic, she entered the adult industry in 2002 at the age of 20 and remained active until around 2013. With a striking 5'7" height, measurements of 36C-25-35, natural 36C breasts, long blonde hair, and blue eyes, Sandra captivated audiences with her slim, athletic build and shaved pubic area.
She starred in over 100 films for major studios including Harmony, Hustler, Private, and Zero Tolerance, excelling in extreme hardcore genres. Her performances featured intense acts such as anal sex, double penetration, vaginal and anal fisting, girl-on-girl scenes with dildos, bukkake, watersports, and bondage. Notable appearances include Hustler XXX magazine and films like Natural Wonders of the World Vol.
25. Sandra's bold willingness for gonzo reality porn and large insertions made her a standout in European adult entertainment.