female sonic characters are required to wear clothes, particularly on their lower halves. ergo,
we all know how gay sonic is, so it makes a little more sense if he was already into sally before transition π¦βοΈβοΈ
that's the kinda guy sonic is
"oh you're a girl actually? way past cool, man. woman. whoa-man. still gay for you. π"
antoine is such a chaser. (possibly an egg.) in contrast to sonic, he only started to show interest in sally after she came out as trans. π«