Disclaimer: the story you are about to read uses characters that are not my own property. they belong to someone else, it isn't you.
Minerva McGonagall was a sneaky woman. Despite what some of her students thought, especially four mischievous troublemakers, she was NOT lonely and depressed. She had brothers and nieces and nephews who never failed to visit. She also had a secret, one that she never wanted spread among the students.
Every weekend, without fail, the Transfiguration professor headed off to an undisclosed location in London. And there, this once-broken woman would do something extraordinary. Minerva McGonagall would... I feel like I'm betraying her trust, but... she would go dancing! She may have grown up in a minister's manse, but this professor knew how to groove the jig.
One Hogsmeade weekend, four seventeen year old sixth years decided to do something different. None of them had dates, including Sirius, which was rather strange for him, and all of them had apparition licenses, including Peter, so they decided to escape the hum drum of the village and travel many miles southeast, to London. On Saturdays when he was younger, James and his parents would go to a dance class in the city. Charlus Potter had insisted that it would help his discombobulated son to become coordinated enough to learn quidditch and he was surprisingly correct: James Potter was now captain and one of the team's chasers.
The quartet entered the studio and gazed at the many mirrors and high ceilings. The room's ornamentation was decadent and beautiful. The only downside about the place was the number of old couples dancing away and the lack of girls flitting around. As the boys jokingly prepared to pair off, Peter saw something extraordinary. Professor McGonagall was dancing with an old man and smiling with him.
Pulling at his friends, the teen pointed out the teacher. Jaws dropped, eyebrows raised, they quietly tried to walk towards her. Just then, the couple spun in a circle and McGonagall gave a cry of shock. "What on earth are you boys doing here!" the woman cried in shock.
"Who would've thought Minnie would do the jig?"