Yeah, you need to find a teacher.

With all your focus you manage to not make your pants explode as you walk inside the school. Luckily for you there's nobody inside. All you need to do now is find a teacher or something. You quickly find a room marked as the principal's office. It was a very small school, probably only room for about 80 students, so you assumed the principle was the one you needed to ask.

You knock on the door "come in" says a woman from inside. You open the door and is met by the look of a MILF sitting in front of a desk. She had her brown hair in a bun, glasses and strict work clothes but it didn't hide the fact that she was a bombshell. Once again you could feel your dick getting harder, really hurting your crotch this time.

"Oh? Can I help you?" she asked with a confused look.

"Yes. I'm John, I'm new here" you said, trying to not think about how you wanted to clear her desk, put her on it and impregnate her here and now.

"John? Are you sure you're at the right place?" she said, still very confused.

"I'm fairly sure. John, John Smith. My mother signed me up a week ago." you said, embarrassed by the situation.

"Oh..." she says, looking embarrassed. "I have a Joan Smith who's going to start, I guess that's you?"

"Oh good. Yeah, must have misspelled my name. We moved here yesterday so my mother has been stressed." you said, happy the situation seemed to work out. Not happy that you almost started grunting in pain from your dick trying to destroy your jeans as you spoke.

"Umm... This is a girl school but there's nothing I can do right now. There's not many schools in the area and it's probably too late to enroll in any of those right now. I'll let you in for now and then I'll try to contact other schools later to solve this situation." she said, smiling at you.

"Thank you so much!" you said relieved. Just as you said that you could feel something ripping. Your hard cock had finally won the fight over your jeans and it was out in the open. For some reason you forgot to wear underpants! Luckily for you the principal sat behind her desk, so she wouldn't notice. Problem is that you needed clothes.