A nerdy Latino guy - Diego Perez - and his lovely, slender, petite blonde step-sis with small titties and funny freckles - Demi Hawks - has grown up in a very conservative family. That's why Diego gets shocked when he catches Demi watching porn and masturbating in the toilet. Yet, the aroused girl just can't stop doing it and she entices her step-bro to fuck her for the first time.