Why does his brother need a gf when his half-sister deepthroats jizz-shotgun so well?

Honestly, my brother doesn't sweat the fact that he doesn't have a girlfriend, because if you put it that way, he doesn't need one. His brother has a wonderful half-sister, who will take her in the mouth and give her pussy. As soon as he asks his sister to do it, she immediately strips naked and gives a steep blowjob, after which she spreads her legs and fucks in her hairy pussy.