Explanation time, if it helps at all.  The idea for this became stuck in my head after I was reading another fanfic where Hisao asked Hanako 'do you want me to call Lilly?'.  In my tired state I read it as 'Do you want to call me Lilly?'  And thus, this was born.  Don't take it too seriously.
 
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‘Hanako, are you sure about this?’ I ask the girl lying next to me, who looks up at me and nods with a big smile on her face.
 
‘Y-yes. It’s n-nice to have her a-around again.’ She says, nuzzling her face into the two mounds on my chest with a contented sigh, her eyes fluttering closed.
 
Still unsure I reach a hand down and gently stroke her hair, running my fingers through it and tussling her bangs a little, which makes her giggle as she reaches up to push it back over to the right of her face.
 
It’s hard to say exactly how healthy this is for her, but she was the one who bought it up, and times like these she seems genuinely happy, perhaps even more-so than ever since Lilly left for Scotland. Well, this way she gets to be with her two best friends again I guess.
 
Unwrapping an arm from around her I adjust the padded bra on my chest, a dark blue thing that clearly wasn’t designed with a male chest in mind. I debate undoing the top few buttons of my blouse, but ultimately the bow would be too much trouble. Well, up it is. Working my hand up under the top, I fiddle around with the bra a bit until it’s sitting more comfortably on my chest, eliciting a small giggle from Hanako.
 
‘Problem?’ I ask, to which she blushes a little before replying.
 
‘N-no. It just l-looked rude.’ She says, stifling yet another giggle.
 
Shaking my head in mock disappointment I try to keep a straight face, but all those efforts go to nothing and before you know it we’re both roaring with laughter, long blonde hair falling in front of my face and obscuring my vision. Wiping the stray strands from the wig out of my face, I feel a new sensation on my legs, looking down to see Hanako’s slightly shaking hand resting just below my thigh, working up at a snail’s pace.
 
I’m not entirely sure whether shaving my legs was necessary for this, but Hanako insisted on it…just how much did she know about Lilly’s body, and how did she know it?
 
The thought, along with a hand trailing slowly, gently upwards, causes something to stir under the green skirt I’m wearing, all of my willpower going into counteracting it.
 
Think of something else, anything! Kenji! Conspiracy theories! Lilly’s legs! Wait, no-
 
There’s no hiding the unmistakable bulge in the skirt now, and with something like curiosity on her face Hanako’s hand touches the edge of the green fabric, and after waiting for a few seconds, she flips the skirt up so it lays to rest over the lower half of my torso.
 
Reaching her slightly shaking hand slowly out, she rests it barely touching on the blue panties I’m wearing, gripping me lightly through the fabric.
 
I should probably mention at this point that Hanako procured most of the stuff I’m wearing now. The actual uniform is something Lilly left, having no use for it anymore I assume she was simply going to get rid of it, but Hanako managed to come up with an excuse to ask her if she could have it.
 
The underwear she bought online, guessing my measurements – apparently Lilly had a very similar set of dark blue panties and bra, making me wonder again just how much of Lilly she had seen. The long blonde wig was also an online purchase.
 
My thoughts are bought back to the present by a slow sliding movement, gently rubbing me up and down. Looking down I can see Hanako is refusing to meet my eyes, her stare locked onto her hands with more than a hint of red in her cheeks as she works.
 
‘I-is that nice, L-Lilly?’ she asks me, still not looking up to meet my face.
 
‘Y-yes Hanako.’ I stutter slightly, surprised at being called Lilly. Well, I didn’t try and put on a feminine voice or anything like that, it would probably just sound silly, and I wouldn’t be able to pull off Lilly’s air of composure.
 
She looks up then, a shy smile forming on her face as she brings her other hand up, tugging loose the bow around my neck which falls uselessly onto the bed beside me. After fumbling around single handedly for a while with the buttons I decide to help her out, removing my arms from around her and undoing the buttons myself. With the padded bra on my chest now exposed she buries her head into it once more, sighing contentedly as she whispers, ‘Not as big as Lilly’s…’ breaking out in another fit of giggling.
 
‘Sorry.’ I say, smiling down at her.
 
‘I-it’s fine Hisao. I m-mean Lilly.’