[NSFW] What's up with all the incredibly hot she-male porn?

TGIF thoughts. You should forgive the pun. I can pretty well see what’s up here:
https://www.google.com/search?q=hot+shemale+ass&hl=en&tbo=d&rlz=1C1ASUT_enUS506US506&source=lnms&tbm=isch&sa=X&ei=sJf7UIujI4Km9ASbhoHYCA&ved=0CAcQ_AUoAA&biw=1241&bih=606.
Link decidedly NSFW and many of the images are probably NSTC (Not Safe to Click), as in malware may await on the parent sites. But you can grasp the genre from a totally safe Google image search. How can there be so many guys capable of looking that feminine and pretty yet still hung like horses? If it’s all faked, how do they fake it? Still photos can be photoshopped but it would be tough to crank out all the full-length, she-male porn movies that are out there using green screens and photo manipulation. How is this done?