Bisexual pornography
As most pornography is marketed to men, most bisexual porn is advertised to straight or bisexual men. Very few customers of bi-porn say they are gay. Producers who use the term "bisexual porn" are usually showing  what a bisexual or bi-curious man might wish to see.  Sex acts between a man and a woman, as well as between two men. A common way that these are shown in a single scene is with one woman and two men performing together.