can somebody explain this to me.

Looks like they are doing it in their sleep

Its seems Misaka (any Misaka) have some kind of sleep habit, that pose is like embracing a pillow, just like Mikoto does with her pillow or her giant bear, something her clones/sisters inherited from her. XP

Invisible man sexing them up?

Anthyel said:
Its seems Misaka (any Misaka) have some kind of sleep habit, that pose is like embracing a pillow, just like Mikoto does with her pillow or her giant bear, something her clones/sisters inherited from her. XP

Agreed. Makes the most sense. Hahaha, gotta love the look on Accelerator's face, like "The hell do I do?"

Ashen said:

Agreed. Makes the most sense. Hahaha, gotta love the look on Accelerator's face, like "The hell do I do?"

True. Accelerator might be used to it from Last Order, but when it's a teenage girl, his mind goes blank.