Doctor orders hot threesome with step sister and brother - You two naughty slobs need some time alone to indulge in a threesome! Your stepsister is not happy about her little brother's small penis, so you need to convince her that it will make things better. You can start by asking her if she would like to be filmed while you pleasure her; she will probably want to wear something skimpy and sexy to look at while her man is on top of her. You could also let your stepsister watch and see how easy it is to please your big dicked stranger; she will love the feeling of watching her step-sister getting off successfully as you pleasure her; and she will likely tell you if she is enjoying it too!.