Corinthians 10:8 Nor let us act Immorally, as some of them did, and twenty-three thousand fell in one day.
Why indulge in a sense of humour which prompts you to do that?
There are plenty of jokes that won't make you to behave Immorally. If you do something wrong once,
even as a joke, you will be tempted to do it again and again. Today you are doing it as a joke and tomorrow it will become a permanent habit. You will keep justifying it. Immorality is always wrong, so try not to ever indulge in it, even jokingly.