User blog comment:Nabukad/A question: Why so sexually attractive females?/@comment-3308937-20131002112955/@comment-3308937-20131002123723

I don't disagree that some of their chest sizes are a bit big but that's just what to expect from a game whose original art style included cartoon-ishly detailed champions. They do exaggerate the female form, especially in regards to the chest but the opposite is also true with men.

Look at Ryze and Kass, two mages that are ripped or Singed who is skinny and lacks muscle-tone but has overly exaggerated shoulders. That's just what they did to differentiate the genders back when model quality was lower than it is now, men had big shoulders and were usually quite bulky while women had exaggerated chests and hips.

The visual upgrades and recent releases seem to be doing a good job at making the women of the league more realistic, especially looking at the latest women in the league: Lissandra, Jinx, Quinn, Vi, Nami (to a point), Elise, Syndra and Diana and looking at reworks like Kat, Sivir and Karma (the original rework design being a lot "sexier" in comparison to what came out).