Stepbrother fucked doll and stepsister offered herself

The stepsister accidentally saw her stepbrother fucking a doll and decided to start see on him. The stepsister could not resist and approached her stepbrother during his sex with a doll and during the dialogue decided to offer to fuck herself to the shy stepbrother, the brother was not taken aback and the very next minute the stepsister was holding his penis in her mouth, the girl and the guy were so carried away by the process and there was no stopping them