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!
Experienced man, to whom young girlfriends asked for sex, rightly distributed their forces. While he fucks one, the other excites her clit with a toy. Everyone is in business and satisfied. If you change partners, then long over her not have to pant - can quickly cum or jump on top herself. And the girls do not get bored, all the time caressing not only themselves, but also their partner.
Oh, I would fuck her.