@MishaLover: I think the scratches on her back in 13 are implying that it actually happened. Although I have to say Tomoko imagining it and unknowingly scratching herself is far more likely, in terms of the manga.
Art could be better: it has potential because the poses are really sexy, but the lines are too harsh & sketchy to get a good enough idea of what's going on. Otherwise, it's cute as hell!