I'm not a fan of WoT, so keep that in mind; I did read six of 'em before I finally decided to stop, but I'd been bored since the third--I just was holding out for it to get better and, well, realized it wasn't going to.
That said, there weren't any graphic sex scenes that I recall in any of what I read--there's some implied stuff but it wasn't detailed IIRC. (This was several years ago that I read 'em, though, so take that with a grain of salt.)
Are you open to alternate recommendations, though, because IMO there are way better things than Robert Jordan, things that also do not have sex scenes.
Insert obligatory
Limyaael Rant Plug here.