Luvmusluttygirl: She DOES have a fine-looking ass; built for comfort

Tell her how much you love her, how she turns you on, how you love the sounds she makes when she cums. Whisper in her ear that you'd lovvvve to see her with another man. Ask her what turns HER on. Tell her if she ever wanted to be with another man it'd be okay -- really. It's just sex and sex is wonderful. She'll be titillated, but will blush and say "it'll never happen." But trust me, she'll think about it. Keep telling her those things. Be honest and open about sex. Tell her when you see guys checking her out, and say you kinda like it.
That's how it happened with us -- and then one night, in a bar in Boston, sitting next to a flirty guy, the opportunity availed itself -- and it just happened. And. It. Was. Hot.