Having had many family members serve time, as well as being good friends with gay men who have had the displeasure of being incarcerated I can assure you that there are very few love stories behind bars. Homosexuality may be an alternate outlet for sex, but the practice of this (homo) sex is not affectionate, and or necessarily emotionally intimate. Being gay, would in fact make you more afraid of being behind bars, and probably get you segregated into a special unit-as person vulnerable to increased assault or increased intimidation.
Some people may think, that a guy wanting to "Punk" you, means he has enlightened views on homosexuality, but that simply is not so. The absence of female sex partners require otherwise Straight men to choose the bodies of gay/weak men as substitute women.
Imagine if you would, two loving female partners attempting to conduct a healthy relationship on a island of men, who have not tasted pussy in five years. Those men would not allowthose women to have a loving relationship in that context, they would use them for their own pleasure, first. Two gay men are similiarly regarded behind bars. Why let two substitute women be intitmate when there are a pack of hungry dudes who needs have to be met?