There's an issue, it's his bag but not his clothes.

K-T quickly opened the bag, sleeping naked in a bed with someone who has the reputation to be gay could look like an invitation for Jonas to try something during the night. With the stupid towel almost impossible to hold in place he sat on the bed and kept it over his lap while he looked in the bag next to him.

The first thing he noticed was the flashy colors, he didn't remember packing anything I these tones, nor having so much pink in his wardrobe. He then noticed the piece of paper on top of the clothes and only noticed what was wrong by reading it.

'hello dear brother,
I'm the one who told mom that you were keeping wearing dirty clothes for whole weeks this month, she didn't get why, but I did. So when I heard what she had planned for you I thought of making things more interesting. Have a fun week.
Emily
ps: I asked my friends in your class to take as many pictures as they can during the trip. There'll be a full report on the trip in the school's journal, website and the yearbook.'

K-T quickly looked at the contents of the bag and after a couple of minutes he sighed in despair. His sister had replaced all of his clothes in the bag by some of her own. She had left nothing that could even at a glance look like boy clothes, all he had were dresses, miniskirts, tank or tube tops, thongs, a few nighties and a bikini so skimpy that their mother had forbidden her to wear in public during their last vacation. Worse pretty much everything in this was in bright eye catching colors sure to make him the centre Of attention for everyone to notice that not only will he have to crossdress but also to do it in clothes at least a size too small for him.

As ridiculous as it would look the only thing he could wear to bed without depriving himself of clothes on a a later date due to his mom's rules was either one of a few pastel colored nighties, without underwear and so short that a part of his dick was sure to hang out underneath the hem of it, the fabric of those was thin and almost see-through.

He quickly put on the lavender one and slipped under the covers before Jonas finished showering. The two jocks had snickered at the girly color but didn't look like they realized that he was wearing only a bit of revealing girl lingerie to bed.