A few hot FemDomme Tumblr blogs. All are completely NSFW.
Sexy and Submissive displays submissive men locked in chastity and tormented by desire.
Strapon Bugaloo shows what happens when a women gets a chance to ram her strapon into a submissive male’s willing ass.
Skimble Place is an amazing collection of hot FemDomme images. Very highly recommended.
Diary of a Male Submissive is mostly a collection of male submission photos, with occasional quotes and other notes. Hot!
Bihappy shares pictures of enslaved males and cruel Mistresses, but also other images of women in various erotic poses.