Having shagged a couple of fat birds (non punt I should add!) I will say they do seem to try harder! That's not to say fit girls don't, but there are some that do exactly as you describe, Zootie. Of course, there's loads more that do still put the effort in, just like the fatties do.
It's funny that when I sit back and analyse it, the women that seem to put the least amount of effort in are WG's - the ones being paid! I suppose though, that's because generally if you're shagging a civvy, it's either because you're in a relationship, and thus she wan't to please, as well as enjoy it, or you're having a lustful fuck or one night stand, in which case she's just as up for it as you are. The WG just wants to get paid
Bit like hobbyists I guess - the DIY enthusiast enjoys doing DIY and puts in the effort, whereas there's loads of tradesmen that aren't as enthusiastic as the DIY enthusiast, and just wanna get the job done, get paid, and go home!
