Our post-human replacements don't care if we find them sexually attractive, because we're a throwback as far as they're concerned. But that doesn't change the fact that mutants, cyborgs and other post-humans are hot as hell. Here are the sexiest.
Thanks to Samantha Bishop Simmons, Michael Falkner, Al Clay, Steven Michael Alberti Williams, Bonnie Burton, Will Sowards, Amanda Rae Wood, Ned Abbott, Johnny Splendor, Michael J. Welch, Michael Goldfarb, Susan Price, Garrett Keirns, Alston D'Silva, Kristoffer Åberg, Laura Johnson, Liz Stumann, Clinton Wade Steeds, Emma Lou Grey, Falk Diestel, Charles Burgess, Cody Glenn, Winter Mute, Catita D., Bill Taylor, Rachel Yates, Diana Trout-Kreider, David Boyle, Teresa Harris, Chris Sanchez and Rebecca Caruthers for suggesting some examples over on io9's Facebook page.
Here you see Molly Millions from Neuromancer by William Gibson. The Steppin' Razor: sexy, cybernetic and cynical. Fan art by Deadinsane on Deviantart.
Wolverine. He's the best there is at what he does. He's also full of animal passion. And he's got a healing factor.
Seven Of Nine from Star Trek: Voyager. Her detached, mechanistic attitude suggested that she was above such things as human sexual deviance, but her shiny silver jumpsuit, leaving absolutely nothing to the imagination, said "Rrowr." Actually, the one Borg implant over her eye is what makes her sexy. There, I said it. Cheesecake fan art by Transfuse on Deviantart.
Darth Vader. No, seriously. He's sexy as hell, with the shiny black outfit, the deep voice, the mesmerizing red lightsaber... I mean, he'd probably be terrible in bed. But better than Anakin would have been.
Leela from Futurama. There's a reason why there's so much Futurama porn out there, and a big part of it is our favorite one-eyed, purple-haired captain. That one eye is the window into a huge, beautiful soul.
Roy Batty from Blade Runner. Are the replicants cyborgs, or something else? In any case, they're clearly posthuman. And Roy Batty smolders as the tortured monster who rages against the dying of the light. Rutger Hauer's hottest role, and one of the sexiest mutants ever.
Primavera from Dead Girls by Richard Calder. In this novel and graphic-novel adaptation, a virus transforms pubescent girls into vampiric daughters of Lilith, or Lilim. Primavera is a Lilim assassin who has a doomed love affair with a 15-year-old boy, Ignatz.
Alice from Resident Evil. Altered by exposure to the T-Virus, Alice gets various superpowers out of it, including advanced mental abilities — and she kicks tons of ass while wearing hot boots. Her sexiest moment: When she fries a military satellite using her mind.
Warren Worthington III aka Angel, from the X-Men. Yep. It's the wings. Actually, it's the whole deal.
Elle Bishop from Heroes. C'Mon... it's Veronica Mars with zappy lightning powers. Plus she uses them for sex, like, all the time. She has lightning sex with Sylar at one point, and she also has zappy hand-holding intimacy with Claire Bennet at another. She is the new electric hotness. Image by PushOK on Deviant Art.
Motoko Kusanagi and Batou from Ghost In The Shell. Motoko and her second in command are two of the baddest cyborgs in any medium. Sexy and unstoppable.
Miranda Lawson in Mass Effect. A possible love interest in Mass Effect 2, she's genetically altered to have various superpowers, including biotic abilities. She's terrific with guns and a super-talented commando. She's also Yvonne Strahovski, in space, with superpowers.
Victor from Dollhouse. Dang, I miss this show. Victor, like all of the other dolls, can have any human ability or personality, thanks to his brain-computer interface. But most of all, he can be an amazing lover. There are more swoon-worthy screencaps of Victor in bed with Adelle over at Superhero Fan.
Six and Eight from Battlestar Galactica. With their glowy spines, awesome hair and multiple different personalities, both of these Cylons kept us guessing and wondering, and dreaming.
Locutus of Borg, from Star Trek: The Next Generation. The Borg hit their pinnacle of sexiness when they went for Jean-Luc Picard. Their later attempts at having a sexy leader, with that whole "separating torso queen" thing, were just pathetic in comparison. That baritone. That one commanding eye. Resistance, for a while anyway, really was futile.
Summer Glau, from Firefly/Serenity/Terminator: The Sarah Connor Chronicles. She's pretty much the poster-girl for posthuman sexiness. Whether she's a robot with a human skin (that seems to have a lot of sensation, when John Connor touches it), or an ordinary girl who's been upgraded through a series of mysterious experiments, Summer Glau is the sexiest posthuman of all time.