I don't think it takes it to a more disturbing place than Eva was already--this is a messed up show (it's not Bokurano, but still). He has massive sexual tension issues (masturbating over Asuka's comatose form . . .?). And, I agree that Misato wants to help Shinji. Mary's point would be to help Shinji whether or not he wants her solution. If Misato isn't going to do what's necessary . . . she will. Dealing with Asuka's pent up sexual frustration will probably be less effective . . . until she corrupts Kaji into helping out.
And, at no point do I doubt that Gendo wouldn't put Mary up to something like that to try to [censored] a backbone into the boy.
ETA: I'm not advocating that we write out Mary making Shinji a man (though, as a pervert, I'm won't shy away if the scene appears relevant to the story). Simply fading to black, leaving the actual deed implied, is fine by me. Simply referencing Shinji's sunken eyed, bruised, staggering frame the next morning would be sufficient.
And, at no point do I doubt that Gendo wouldn't put Mary up to something like that to try to [censored] a backbone into the boy.
ETA: I'm not advocating that we write out Mary making Shinji a man (though, as a pervert, I'm won't shy away if the scene appears relevant to the story). Simply fading to black, leaving the actual deed implied, is fine by me. Simply referencing Shinji's sunken eyed, bruised, staggering frame the next morning would be sufficient.