Well, half-brothers and half-sisters are not related at all, so it can't be considered something bad or immoral. It's no surprise that an adult guy and girl, with no regular sexual partners and almost daily being around each other, suddenly felt attracted on a sexual level to each other. Considering that the girl liked it (the guy then no question), I think they will continue to practice this kind of thing from time to time.
Evocative languid look, firm ass and bright lingerie make the girl sexually attractive, and looking at her gorgeous figure, every man in the pants will bulge. The man is mature, but he'll give many young men a head start. Young girl, I see, loves to ride on his dick, not only putting on a cute little nipple, but also the mink of her anus. And she is a great master sucker, you can trust her.
¶ I'd like that ¶