For some reason bethesda is very anti-nudity. I mean, there doesnt have to be six or anything like in the Ballad of Gay tony in GTA4, but seriously, I dont think EVERYONE would have the same corresponding bikini / loin cloth in the whole world. Decapitations, talk of [censored], and burnt corpses are fine, but GOD forbid there be some skin being shown.
Normally, shying away from nudity and other related subjects wouldn't bother me, but in this case it does a bit because
it wasn't always like that. I came into the Elder Scrolls games with Daggerfall, and it had nudity and references to six all over the place (go read its version of
The Real Barenziah sometime), and it worked out well and seemed to make sense rather than being dumped in just for the help-15-year-old-boys-get-off factor.* Once Morrowind came along, however, the next two games started going down the road of bowing to certain small but vocal sets of society that I shall not name here, and wiping out almost all concept of sixuality; Skyrim's actually a bit of a step in the right direction in that regard.
In fact, I first played Daggerfall back when I was nine and, and I don't seem scarred from all that advlt stuff, do I?... wait, don't answer that.

*Battlespire... well, things may be a bit different there, that's a bit more borderline.