His hopes were soon dashed after his sister got in the shower when the familiar transformation didn't return him to his human form.
When Zoe got out of the shower she saw a clean white towel neatly folded with her clothes. "Mom must have set a towel out for me. Funny I didn't hear her come in, oh well." While Jon thought being his sister's bra was bad being her towel was much worse.
Jon was rubbed all over her body, across every curve, soaking up all the moisture he could. He could feel himself getting heavier as he absorbed more water and found himself forced into every nook and cranny.
Once again in her sleepwear Zoe dumped her towel into the laundry with the rest of her dirty clothes and went to her room.