Some days we like to look at two naked breasts — other days, a single uncovered boob is more to our liking. For all those times when a half topless girl is just enough to get us going, there's One Breast Exposed, a Tumblr that tracks online instances of monoboobage (not to be confused with mondoboobage — though there is the occasional overlap).

· One Breast Exposed (soaressilva.tumblr.com)

Send an email to Lux Alptraum, the author of this post, at .