The very first thought that sprung to my mind was, of course, its sexual context. Here I wouldn't use the word in question in reference to males. (Maybe if they have exceptional lips....I think I've said too much, far too much.)someone or something which is excellent or very pleasing
It might be my native language that seems to be blurring the correct understanding of the word. Here in Poland (at least among the people I hang out with) the word peach definitely has some sexual connotations.I have never heard the word "peach" used in any sexual context. I can't think it is that common, not in BE anyway.
peach - nice ass pussy(vagina); A nicely shaped, and usually freshly shaved vulva, typically characterized by large labia majora (outer lips) and small, if not invisible, labia minora (inner lips).
It's not like this that you should be careful not to say it; just bear in mind the fact that in certain circumstances it might work this way.[I will be careful not to say it in Polish, though, now that I have been warned.]