The term sex-based harassment--. means conduct on the basis of sex, including conduct of a sexual nature, that unreasonably alters a persons ability to participate in or receive any benefit, service, or opportunity from an education program or activity that receives Federal financial assistance, including by creating an intimidating, hostile, or offensive environment; and. includes an employee, agent, or other person authorized by the recipient to provide an aid, benefit, or service under the recipients education program or activity, explicitly or impliedly conditioning the provision of such an aid, benefit, or service on a persons participation in sexual conduct; and. the term sexual orientation includes homosexuality, heterosexuality, bisexuality, pansexuality, and asexuality.