Sure it's gay, if you don't say no homo after. Also gay if you push back or don't beat him up after or if it's not part of a three way.
More seriously, yeah it's gay, who gives a fuck. It isn't full opening a bread and breakfast in Vermont with your male lover while watching NPH and George Takei porn level gay, but it's still a dude. So gae.
As for Buck Adams might be a chick, but chick chick chick looks like a dude so still gay. Again though, if it turns your crank, who gives a fuck.
If you have sex with Bea Author from the golden girls... you are gae.
Also while we are at it. If you think sex with a woman is improved with the addition of a dude, you are gae
If you fantasize about a hot chick and dreaming she has a dick. You are gae.
And again, who gives a fuck, you shouldn't. Leave it to this guy to care.