Roxy your girlfriend isn't too happy when you decide to whip your cock out in front of her and ask her to give you a blowjob. She does not want to yet as you have only been going out a while and thinks it's better to wait till she's ready for more. She hesistantly gives you a quick handjob but that will have to do and she insists it's too soon for anymore. Then Lenina your step-sister comes in unexpectedly and asks what you guys are doing and why is her brother's cock out in front of her. Lenina tries to cover her face and not look at it as they both tell you to put it away, instead of doing that you shockingly ask your own step-sister to join in. They are both gobsmacked that you would even suggest such a sick idea and there's no way that either of them would go along with the idea of some sort of threesome. You decide to get your own way with them and fuck with their minds. You take control and they become entranced as they respond with "yes master" and now will obey your every word. Now both of them are the complete opposite and begin licking and sucking your cock, talking dirty as they share it and describe how big it is and good it tastes! They absolutely adore you now and can't keep their mouths and hands off your big dick. Getting sloppy, spitting and drooling all over it, even letting you push their head down and have them hold it deep making the gag. They are so greedy for it and want your cum, they both keep sucking you off till you cum in their mouths and start playing with your cum letting it drip out onto their fingers.