Iggrot Moshe, Orach Chayim 4:115

"A response to one who has stumbled with lying with men, may The Merciful One save us, The first of the New Moon of Adar I, 5734 (Winter, 1974) to the honored young man, may he merit a long and good life, peace and a blessing to merit complete repentance. Despite my many obligations, since our sages of blessed memory said many things regarding helping people repent, certainly we are obligated to respond to a penitent, whether it is to decide a law, or whether it is to help him that his spirit shouldn't fail, or become complacent regarding something that needs much reinforcement to be saved from the designs of the wicked inclination, therefore I have made some time in order to respond to his letter. I do not see a halakhic question in his letter . . . rather you want that I should write you words of encouragement to help save you from the evil inclination and some advice. First, the knowledge of the severity of the ban, [that is punishable] with stoning and karet, it is called an abomination, it is one of the most disgusting of sins, and that even non-Jews are commanded regarding it, is very powerful to stand up to the evil inclination. Second . . . the desire for male sex is against (natural) desire itself and even the wicked have no desire for this in particular. A person has such a craving (merely) because it is a prohibited thing and the evil inclination seduces him to rebel against the will of the Holy One, blessed be He. This knowledge is a great strength against the evil inclination that has already overcome him. Because you believe in the Holy One, blessed be he, and in all of the Thirteen Principles [of faith], and in the Torah, with this you can defeat him (the evil inclination) when he entices you to betray and anger him (God) . . . Third, the disgust to people, since all over the world, even the wicked scorn those who sin by lying with men, and even in the eyes of the other wicked person with whom he performs the sin he is disgraced and shamed, is a strength against the evil inclination . . . It is good advice against the desire for this disgusting and shameful transgression, that is not only against the Torah, in the most severe fashion, but is also against the essence of humanity, as he is made lowly and disgraced in the greatest possible humiliation. Not only is it shameful for him, but it is the greatest shame for his entire family. The greatest piece of advice is to study Torah in depth, since it is saves and protects from all illicit relationships, and even from [lustful] thoughts . . . I will finish with a blessing that your repentance should be full and complete and that you will grow in Torah and in the fear of Heaven. Moses Feinstein" [Translation by Rabbi Steven Greenberg]