A favorite of mine:
Dear George,
Is she also your sister? I checked out her photos on your Facebook page and while she is not exactly my type, I accept that other people have different preferences. Even when those preferences include facial tattoos and stretch pants constructed from sufficient material to shelter a small village. And their livestock. Some men enjoy dancing with other men without their tops on while others prefer the company of a woman two KFC family buckets away from upsetting the planet's rotational axis.
I read somewhere that Eskimos prefer women of girth as it provides warmth at night. I have seen the size of those igloos though and there is no way your girlfriend would make it through the opening. You could probably just construct one around her and despite the hassle of having to trudge out into the snow every day to catch and prepare the eighty seals required to maintain her mass, it would be like a kiln in there.