Fucking his stepsister as a birthday present

Her friend wraps her body with ribbons and then goes to look for the boy who enters blindfolded. It's the boy's birthday and he unwraps his present, stroking the girl's little tits. She is pleasantly surprised when she sees that her gift is her naked half-sister, kissing her with passion. The girl kisses him deeply as she jerks off his hard cock and then the boy fucks her in a doggy position. The girl's friend hears the moans of pleasure and joins in with the horn