Not fully understood what the stepmother was talking to him in the beginning, but judging by the further development of events, obviously complaining about his hard feminine lot - large breasts, in her case, which is difficult to wear without constant massage. And the massage of her breasts, as well as of her whole body. And that's what his dark-skinned girlfriend was talking about, before she went to bed with them, I understood at once - she sympathized with her stepmother and offered her help! That's how it was, wasn't it?
Either this half-sister is a slut or it's not the first time she's fucked her brother. Look how calmly she reacts to his appearance. And even though his dick isn't the healthiest, he's always around and she sucks it with pleasure. And judging from the video, the girl likes to be licked there. She even shudders when his tongue touches her clit. Yes, and with his fingers he helps her catch up before he comes inside her. It's nice to live with such an available sister!
To meet three hot girls in one pool is great luck! Each of them wants to look like the best female. And to draw conclusions, you have to fuck them all. It seems the lucky guy has been in a fairy tale!