reverse_trap with those boobs?

She does a really great job binding them most of the time.

Not in this picture. Tag removed...

http://www.mediafire.com/?yhmnmqwnnmj

The full doujinshi

Reverse trap, like tsundere, has been used in many images where it shouldn't apply. Just because Naoto is a reverse trap most of the time doesn't mean it applies to her in every picture.

As a rule of thumb, if you can correctly tell the gender with complete certainty from the thumbnail alone, it's not a trap.

That's a great rule of thumb, I'm adding that to the wiki!