Prostate and trio massage with stepsister

His girlfriend has no idea how to give his prostate a good massage, the girl is very hot, but she doesn't even stick her tongue up her ass, that's how it is. luckily, his half-sister, who is very liberal, offered to have a threesome with them and, incidentally, teach his girlfriend how to properly stimulate her boyfriend's prostate. Plus, the truth is, she has to confess that she's been wanting to try out her stepbrother's dick for a while, so here's an opportunity that shouldn't be missed.