Jon shuffled out of the bathroom after a few minutes of Sarah's encouragement and gentle reminder she had the keys to it.
The bikini she gave him barely covered his bottom, held in his small(er) dick and balls, while the top covered his rock hard nipples. A glance in the mirror over his shoulder as he walked out showed only a girl walking away. His butt looked larger in the bikini, and felt like the thin fabric was going to slip into his crack. He tugged on the top strings tied around his neck as he stood a few few outside the door.
The silence was deafening as Sarah stared at him with a grin of her face. "That's it. I'm going to change back."
"No!" Sarah grabbed his arm and pulled him into a tight hug. Besides the warmth, he finally felt mister happy respond and his bikini bottoms grew even tighter. He tried to shuffle out of her grasp, to not embarrass himself, but she just held him tighter to her chest, burying him her cleavage. "You're beautiful. Oh - I need a pic!" Before Jon could say anything, Sarah spun him around with her as she grabbed her phone from somewhere. Her arm held him tight to her side and shifted to around his waist. "Say 'cheese!'" Jon smiled reflectively at the phone as Sarah took her selfie of the two of them.
She stepped away, letting him try to cover his growing dick with this hands. "Can I see?" Jon asked, trying to keep his voice level.
"Oh, of course," Sarah spun back toward him to stand next to him again. She showed him the screen of two blondes, one a hot teen the other a cute tween, smiling up at the camera in near matching bikinis. It even looked like the tween has a little cleavage. Jon glanced down at his chest and instinctively pressed against the top.
"Does my..."
"Relax," Sarah said, pushing him but smiling, "you look fine. Besides, its that ass that is going to do the boys in." She slapped his butt, and the shockwave sent him squealing. He started to rub the flesh through the fabric, glaring at Sarah. "Trust me. That is like the perfect bubble butt. We're going to have to make sure you keep it up."
Jon spun to try and see his butt, but only manage to stick it out further. "What?"
"Jon, relax, you're so cute. The boys are going to eat you up," Sarah said, wrapping a now comforting arm around him. He shook his head - he didn't want boys. He wanted girls like Sarah, and his dick agreed with him. "Hey, it'll be okay. Don't worry about it today. Just try to have some fun." Jon could only nod as she gave him another squeeze before letting go. "Now, grab your phone. I'll grab some towels and sun lotion. Kay?"
"Kay," Jon said, trying hard not to cry in embarrassment or fear. He bit his lip and turned back to the bed. He grabbed his purse with its contents spilled out and shoved them back in. He didn't know why he was still wearing this silliy, tiny thing, and a glance over at the large mirror in Sarah's room only made it more confusing.
He didn't see a boy.
He saw a cute young girl in her first bikini with budding breasts and a growing butt. You could barely see his hard dick, and even that was back to swelling instead of poking. That cute girl was him and he didn't know how, but it was. What was happening to him?
"Jon?" Sarah's voice echoed down the hallway.
With one glance at the mirror, Jon left her room for the maze of hallways. He hoped the day wouldn't get any worse, but with his luck, it only would.
