Our parents went out for the weekend

I've been having sex with my brother for some time but since we almost got cought at home by our parents we decided not to do it at home. This weekend was diferent, our parents went to visit our grand-parents and the house was only for us. They tried to takes with them but we used the old excuse of having to study for exams. The other problem was our friends, if they knew we were alone at home they wouldn't leave us alone so we told them our parents made us go with them. It was a wild weekend at that house, my brother taped us with his new HD camera so we would have something to remember us of this days.