When a chick sits with her legs spread and asks for help, it's hard to say no. And if it's your sister, it's impossible. But it's nice even for your brother to stretch his shapely legs. Who'd have thought he'd have a hard-on for her? But the little sister, judging by the footage, didn't know anything about decency. She took a dick in her mouth right away. I wonder about them bitches, do they have anything else in their heads besides dick? Like a brain?
Sometimes you don't want to race horses so much. When you first let your partner relax, sensual sex, then the next times she will definitely not refuse, or even come herself.