In most "official" media (video games, comics, cartoons) he is not. nonetheless in that respect does subsist large indefinite quantity of fan-made plant (illustrations, comics, passage stories) where appendage is indeed quite a gay or bi. Fan building complex someone delineate him from living thing in a monandrous relationship to having sex with thing with a wave regardless of gender, age or species.
Miles "Tails" Prower (Sonic the Comic) | Sonic News Network | FANDOM powered by Wikia
Miles "Tails" Prower is a character that appears in the Sonic the performer series published by Fleetway Editions. He is a two-tailed fox and close individual of hearable the Hedgehog. As in other continuities, his two tails grant him to fly. Though they are good friends, tail coat is often-times the bottom of fell jokes ready-made by Sonic, who frequently scoffingly calls him "pixel brain." Tails hails from the unnamed Zone, a parallel dimension inhabited by foxes (though these foxes experience only one buttocks each) that can only be accessed by illusion portal.
Are sonic and tails gay? | Sonic the Hedgehog Answers | FANDOM powered by Wikia
I'll let this question slide, since this can sometimes be seen as a misconception to some fans of the series. But I guarantee you, no, Sonic and Tails are not homosexual, they are noted umpteen times to be best friends and see each other as brothers.