The term "straight-gay-porn" refers to a type of adult film that features both heterosexual and homosexual scenes. In these videos, actors engage in sexual activities with partners of different genders or the same gender. So, it might have scenes where men are having sex with women (straight) and other scenes where men are having sex with other men (gay). This kind of content is meant for adult audiences who enjoy watching a variety of sexual acts regardless of the gender dynamics involved