Tantra is not concerned with any sexual orientation;
gay or straight, heterosexual or homosexual, are all equally irrelevant and meaningless.
Difficulty only results from artificial distinctions placed on otherwise omnisexual humans.
To label individuals as either distinctly heterosexual or homosexual
allows for no versatile people between the two poles or extremes.
It only leads to suffering.
In reality there is only sex and orgasm which can take many forms.
You don't have to surrender your masculinity to be sexual with another man.
The focus is not on who you do it with, but how you do it.
Simply put, the rigid separation into "gay" and "straight," homosexual and heterosexual, didn't occur until the 19th century
when some German psychiatrists tried to label people by their behaviour which led to great suffering in the 20th century.
Before then, most cultures supported and even celebrated homosexual acts among "ordinary" men, though virtually all condemned anal penetration.
Tantra can help overcome such polarisations and help you become free in your emotional and sexual expression.