Your Tax Dollars At Work. A document posted at The Memory Hole cites a June 1994 Air Force proposal ("Harassing, Annoying, and 'Bad Guy' Identifying Chemicals") which suggested possible new chemical weapons, including:

Chemicals that effect human behavior so that discipline and morale in enemy units is adversely effected. One distasteful but completely non-lethal example would be strong aphrodisiacs, especially if the chemical also caused homosexual behavior. [spelling as in original]

Total cost of the project through fiscal year 2000: $7.5 million.