Gautama Buddha or "The Buddha" was never fat according to the Pali canons (Digha Nikaya), he was described as being athletically fit his entire life, about 6'1" tall, possessing a strong build, athletic, etc....so what happened that caused him to be depicted as fat????
Fatt men are sexy, even Budda has to get laid (layed??)
Do you have any links or references about this? I know Buddhism art started late....but in the pali canons it describes Gautama Buddha's physical characteristics in detail......Besides in early buddhism it was not practiced to depict Gautama Buddha in any way, because he was beyond material form, so no-one really knows how his body looked like.