Speaking only about the legal sense here, most places do not recognize that. If you are of sound mind and body, not under the influence of drugs, extortion, etc, then the consent is valid.

Part of the problem is that everyone is at least a little deceitful, and these have been used in courts to claim rape. I remember a case about the use of makeup (deceiving about her actual looks and genetics), and another about being the "wrong" ethnicity. Where is the line for the courts to be involved?