Lady Longstroke

A transsexual superheroine created by Smudge, traditionally depicted as a masochist.

Lady Longstroke, created by the artist Smudge, is depicted either a transsexual or futanari, who has a superpower set similar to Superman/Supergirl/Power Girl, tied in to her arousal. Overall, she’s rather arrogant, causing sometimes even her peers to want to put her in her place, so to speak. Her name comes from her very ample endowment which is generally fully visible, even when under her costume.

Source: http://transsupers.tumblr.com/post/130322836450/