It depends. Jokes or slurs about your sexual orientation may be considered a form of harassment, which courts have held is a form of discrimination under the law. However, federal law and the laws of most states does not prohibit simple teasing, offhand comments, or isolated incidents that are not extremely serious. The conduct must be sufficiently frequent or severe to create a hostile work environment or result in a "tangible employment action," such as hiring, firing, promotion, or demotion. For more information, see our page on sexual harassment.