My Bob

I have three really good friends with no emotional attachment, it is a case of if any of us need a partner for a party/cinema/dinner/orgasm.
My favourite time is when Bob comes round to watch a movie. He lies on the sofa and I lie on top of him, with my back to him. He reaches round from there and can really wank my clit to the point of cumming. But then he stops!! I have to move up slightly so I can slide his hard cock inside me and then he starts fingering my clit again. On the run up to me cumming, I can make Bob approach orgasm just by flexing my vagina muscles. As he reaches a certain point in his groaning, I get off and finish him off by rubbing my clit on the head of his cock where he can shoot cum up onto my tits- mutual cumming partner - every friend should have one :) I'm off to see if Bob is around....