A lot of girls wouldn't mind getting that kind of medical care! But they just don't meet these doctors, and they are too embarrassed to ask to have it added to their medical records. Look at the fervor with which she is treated in the 9th minute of the video, I even wished I had gone to medical school myself.
I can see it's not the first time they've had sex together. It's so convenient - you don't have to take anyone off, there's always a shower and a bed nearby. Of course, her brother's dick is great, so any sister would fall for one and suck it at the first opportunity. Well, it seems to me, he doesn't mind having fun with his sister with it either - his own soulmate won't betray him or make him marry him. It was so cute when her brother came inside her - it just cheered them up. )
Do you want to suck my dick?