You can't trust blondes. She's willing to give her brother a new haircut between her legs just to be appreciated. I understand him - it is impossible to break away from such a body, even by force of will. And then we wonder why some chicks don't give it up on the first date. It's because they have brothers who string them up before they do!
Swapping boyfriends is a way to cheer up and make a friendly encounter sharper. The girls are young and pretty, so the guys didn't have to beg for a long time. And the more pussy you serve, the higher your reputation will be. )