FreakyFilmFan4ever: The blocking in this shot is completely reversed from the shot of Gendo planting Adam in Rei in EoE. According to Kabbalah (one of the religions Eva references many times), the right side of the body is meant to attack, the left side to defend. (Hence the stance of the Evas before a fight.) Whereas Gendo's right hand penetrated Rei's left breast later on in EoE, Shinji's left hand is blocking himself from Rei's right breast.
Quiddity: This type of scene is quite a cliche. I'm quite surprised a high quality show like Eva stooped so low.
thewayneiac: Rei's reaction, or rather her lack of reaction is important character development. This is not just another fan service scene (as I noted above).
