I think he's saying that a slim girl with a well developed glutemus maximus must be lazy and have an arse from over eating/lack of activity, which is bullshit.

You don't tend to get women with no arse and big tits unless they're fake, whilst I've seen plenty of slim or skinny woman who are blessed with a thick arse.

Arseless, skinny women with fake tits are even more ridiculous than the typical, ignorant lad you get in the gym who swells his pecs and biceps, whilst everything else is out of proportion and their legs look like drainpipes.

9/10 times they've just starved themselves and went under the knife.

It's as if their idea of femininity is looking like a lanky 12 year old boy, but 'boobs'... expect the same base level of sexuality from them and a boring lay.

I'd rather have both, or arse, as to me that's more feminine and natural looking.