Size can be a hassle -- DonkeyGirl is well aware of this! In an effort to at least give you an idea of how DonkeyGirl clothes fit, these are measurements associated with each size:
XS: Bust 31-32; Waist 23-24; Hips 33.5-35
S: Bust 33-34; Waist 25-26; Hips 35.5-37
M: Bust 35-36; Waist 27-28; Hips 37.5-39
L: Bust 37-38; Waist 29-30; Hips 39.5-41
XL: Bust 39-40.5; Waist 31-32.5; Hips 41.5-43
Hope this helps. If not, email to firstname.lastname@example.org and I'll help you out. DonkeyGirl is all about making clothes that fit YOU, not making clothes you have to fit into. Don't by shy, ask away!