Ooh, didn't notice!
Not really. To initiate the TF, you must access to your phone, then Inventory and drink the potion. It'll happen after you go to sleep; you'll transforn through the night until the next morning.
speakinf of achievements, I wonder if there's one for trying to convince Asterion to work nude. xDD
I know the Hotel doesn't allows him to be naked but still I wonder what'd happen if you just insists.
"Achievement unlocked: Exhibiotism Denied"