I've copied this from further down the thread. It was from an earlier profile I had.
It happened almost by accident. I'd never considered having sex with a man, but one night I was fucking a girl at a party when a guy came in, got naked and joined in. After awkwardly trying to avoid contact I went for it and sucked his cock, which fortunately he was ok about, returning the favour. It just seemed perfectly normal when we were all naked and turned on to suck and fuck everything that was on offer.