Finding out if the stepbrother is gay

The boy talks to the stepsister and confesses that he has been confused and doesn't know if he is gay, but he is attracted to some women. She offers to help him and the boy gets naked. She gives him a soft blow job, taking her time but the dick doesn't get hard. The girl calls her friend who also sucks the boy's dick. The boy's dick gets hard while the boy touches the stepsister's tits. Then the boy puts his dick in the stepsister's friend's pussy and fucks her hard, and then he fucks her stepsister. The girls touch each other's pussies and suck each other's tits as they take turns getting fucked until the boy ejaculates on the stepsister's ass