do what comes naturally

do what comes naturally

euphemism To have sexual intercourse. If he didn't come home from his date last night, I bet it's because he did what comes naturally.
See also: come, naturally, what

do what comes naturally

engage in sexual intercourse. informal euphemistic
See also: come, naturally, what
References in periodicals archive ?
Some will say the cat was only doing what comes naturally, but if he shows up here again I too will do what comes naturally.