Sex lives are like pets: infinitely more interesting to their owners than to anyone else. Yet Lena Chen and her fascination with all things genitally-related are getting her notice once again. Gawker yesterday gleefully linked to a photo she posted more than a week ago showing the after-effects of a messy hummer on Lena's face (NSFW, duh). While Ms. Chen says in a later entry, "Stuff like that entry should be expected [in a......