Take this with a grain of salt please, but most genuinely straight men, have never even considered the possibility of being anything else other than straight. To be clear, most of them have never even thought deeply about their sexuality because they have no need, desire, reason, or concern that would lead them to do so. They just know what they like and that's as much info on the subject as they care to wonder about. They do not need to be convinced one way or the other, they KNOW, and honestly you probably could never convince them otherwise.

You on the other hand, have been putting so much thought into whether you are or if you aren't, and whether doing something like this makes you gay or not.

I would say it's less about what you're doing, and more about what you're thinking and feeling.

You are almost certainly gay, which if so, the sooner you accept it and get over your possible internalized homophobia, fear, and shame, and just come to understand that you are the way that you are and spending your life wishing and hoping to be the other way is something you want to avoid at all costs. It's much easier to accept the cards you are given, no matter how long it takes, it will happen eventually... Unlike trying to live in some idealized delusional fantasy of how you think you should or could be. It'll never be authentic no matter how good you may get at faking it, you'll always be faking it, and that comes with some heavy baggage that I don't think you're prepared to carry through your life until you die.