Ky Belly Boy:
I'm not gay. I am happily married. But I have been having strange romantic thoughts of being with another obese man in a room stuffing ourselves. Encouraging each other. Then kissing and caressing each others big swollen bellies. Even rubbing our bellies together. Every time I think about a time like this, it is always with another man. Strange huh?
P.S. this maybe in the wrong topic area
You might rationalize this as a desire to see that which you find sexy in yourself embodied in another person. Or you might say that your attraction towards fat and weight gain transcends gender. Sexuality is fluid and amorphous, and even in traditional heterosexual attraction, people aren't often attracted to every member of the opposite gender; there are specific characteristics to which they are attracted.
Whether these fantasies of yours constitute an attraction that could manifest in real life is something you'll have to explore for yourself. But I'd caution against letting the label of "gay" or "not gay" dictate your enjoyment of scenarios you find exciting.