A former scientist by day and car-racing adrenaline-seeker by night, Stephan Cardo left that industry when he realized he could have a much more exciting and rewarding career in pro porn. This tall and lanky Euro hunk was doing some experimenting with his hot wife, Stella Cardo, and they decided to post a sex tape online. The experiment was definitely a success! Check out Stephan and his scientific approach to maximizing orgasms now.