Before you start, you probably want to know the genders of the signs, so here they are. This is for scenario purposes only.
Aries: Male.
Taurus: Female.
Gemini: Female.
Cancer: Male.
Leo: Male.
Virgo: Female.
Libra: Female.
Scorpio: Female.
Sagittarius: Male.
Capricorn: Female.
Aquarius: Female.
Pisces: Female.

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"Scorpio, please, for the tenth time, quit talking!" The teacher addressed, raising an eyebrow and turning toward Aries. "Aries, come here."

"Sorry," Scorpio tried to stop the chatter, but being quiet wasn't her strong suit. "Hey, Virgo, can I borrow that highlighter?" Scorpio whispered instantly after, not noticing Aries bumped her chair on his way to the teacher.

"Um, sure. Which one?" Virgo answered as she opened her pencil case. Each hole for writing utensils were full, and desplayed a full spectrum of highlighters. Literally every color was in there.

Over at the other side of the class were Gemini and Libra. Both were trying to sneek their phones to text people about Aries getting detention again. Gemini slipped her phone out from her pocket, eyeing the teacher. Libra made sure to be just as cautious. Aquarius noticed, but was too busy daydreaming. She looked down at her paper and started doodling in the margin.

While the teacher was writing a detention pass for Aries, Leo took the time to look at himself in the mirror. He noticed a single fly-away hair, and freaked out.

"Leo, it's fine." Sagittarius persuaded. "Ugh... School is so borrrinnngg..." He wined.

"Class, quiet please." The kind teacher waited. "Now, who can tell me about what we learned?" Instantly, Pisces' hand shot up, she had already answered many questions earlier that day. "Anyone other than Pisces?" Silence. "I guess I'll have to choose then. How about you, Capricorn?"

As Capricorn went on explaining in great detail, Cancer was sitting alone in the corner being shy. Listening is what Cancer did most of the time. The rest of the class underestimated Capricorn, she was actually smart.

"Thank you. Now it's the end of first hour-" The teacher explained.

"It's second hour," Taurus interrupted, correcting the teacher, like she always does.

"That's what I ment... Anyway, class dismissed." Everyone shot up out of their seat and headed out. Cancer was last.