http://www.religionfacts.com/homosexuality/buddhism.htm
Theravada Buddhism is most commonly found in Southeast Asia, and focuses on the original teachings of the Buddha. In Theravada Buddhism, there are two main ways of life: the life of the monk and the life of the lay person (i.e. ordinary person with a job, a family, a home, etc.)
Buddhist monks are expected to live lives of celibacy, meaning abstinance from any type of sex. There is no explicit rule prohibiting those with a homosexual orientation from monastic life. [1] However, in the Vinaya, the Buddha is recorded as opposing the ordination of those who openly expressed cross-gender features [2] or strong homosexual desires and actions [7]. The Buddhist sacred texts do contain a great deal of instances of loving relationships between unmarried men, which some believe to have homoerotic overtones. No sexual contact is mentioned in these instances, however. [1]
Lay Buddhists (those who live outside the monastery) are expected to adhere to Five Precepts, the third of which is a vow "not to engage in sexual misconduct." But what is sexual misconduct? Right and wrong behavior in Buddhism is generally determined by considerations such as the following:
* Universalibility principle - "How would I like it if someone did this to me?"
* Consequences - Does the act causes harm and regret (in oneself or others) or benefit and joy?
* Utilitarian principle - Will the act help or harm the attainment of goals (ultimately spiritual liberation)?
* Intention - Is the act motivated by love, generosity and understanding?
"Sexual misconduct" has thus traditionally been interpreted to include actions like coercive sex, sexual harassment, child molestation and adultery. As Homosexuality is not explicitly mentioned in any of the Buddha's sayings recorded in the Pali Canon (Tripitaka), most interpreters have taken this to mean that homosexuality should be evaluated in the same way as heterosexuality, in accordance with the above principles.
A Buddhist author of an article on homosexuality concludes:
In the case of the lay man and woman where there is mutual consent, where adultery is not involved and where the sexual act is an expression of love, respect, loyalty and warmth, it would not be breaking the third Precept. And it is the same when the two people are of the same gender. Likewise promiscuity, license and the disregard for the feelings of others would make a sexual act unskillful whether it be heterosexual or homosexual. All the principles we would use to evaluate a heterosexual relationship we would also use to evaluate a homosexual one. In Buddhism we could say that it is not the object of one's sexual desire that determines whether a sexual act is unskillful or not, but rather the quality of the emotions and intentions involved. [1]