While the stepfamily's away, Gabriela's curiosity and hormones lead her to Peter's room. She finds him jacking off to her lingerie pics, his massive cock throbbing. Teasingly, she strips, offering her big tits and tight pussy. Peter resists, but Gabriela's relentless, sucking and stroking his cock until he can't refuse. He fucks her hard, pounding her pussy from behind, as she moans, "Fuck me, Peter. Make me yours." They switch to cowgirl, her big ass slapping against him, until she cums, her pussy gripping his cock. He pulls out, spraying his load on her tits.