"The idea is that both couples are happy with the swap, so that means satisfying all four people and that can be complicated; but if one doesn't want to do it, then forget it."
Regulars say that most couples don't swap partners, but rather come to join in the raunchy parties.
"This is a freer city now and people want to experiment with things like swinging," said Maria, 33, who with her husband, Daniel, has been swinging for three years.
Bar owners say that the local authorities have no right to shut them down, because sexual rights are protected by the constitution.
But there is a growing recognition that there are people in Bogota who want to turn back the clock.
"You have to wonder, if they do shut us down who will be next?' Maria said.
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