Context: From the Shinji Ikari Raising Project Manga, Misato was away for the night and the three were playing Wii until they fell asleep.
As for the questions:
1) and 2) because in that canon they are both hardcore crushing on him
3) Its just laying on the floor, sorry to break your illusion there
pwhodges wrote:And what does it tell us that Shinji's wearing a T-shirt that says "PEN²" (I presume the "²" is there under Rei's bangs)?
Its actually something of his signature shirt in SIRP