So Nice, So Wild by Max Day

They reached far out for kicks, so far they couldn't come back. There was nothing for them back there where the others were, the men in the gray flannel strait-jackets. They didn't want to live outside the box. And there was nothing back there for the women, who wanted to pick and choose their sex-mates the way they'd pick and choose a pair of shoes. It was life they were after, all that pulsing, throbbing energy of the universe out there. Includes a few lesbians trying hard to convert themselves to heterosexuality.