"You look lovely, baby!"
#BeautyIsInTheEyesOfTheBeholderpic.twitter.com/2NsNbGTL6t
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
I wonder if an alternate explanation could just be the general preference for similarity driving assortative mating (and, if wags are to be believed, GSA).
I wonder if hormone has anything to do with? Inject men with vassopressin and oxytocin and see if we get the same results! 
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.