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!
Sis aroused her brother with her demeanor and young tender body. First she sucked him off, then he played with her pussy with his tongue, everything was mutual. When he fucked her, the tension was instantly released from the two, they moved in tune.