The uni-restroom for little aspiring wizards

While searching his mind and trying not to let the picture of Madam Pomfreys boobs take over, the sudden urge to finish his bodily coffeine-fueled business swept in. It ended whatever decision-making Adrian had in himself while sporting a half-hardened wand.

After a quick look around for orientation, Adrian made his way over to the 9th stories restroom.

Wizards of this day and age can call themselves lucky - ever since the famous minister of magic Granger had fought and abolished the magical runes controlling the minds of the lands house elves, now simply known as elves, they have stopped working for the sake of their so called owners, and have started accepting well-deserved money. Leading, to some surprisingly, to a better quality of the school itself.

For Adrian, this resulted in there not being abandoned restrooms anymore, but a squeaky clean and fresh smelling place for a quick potty break. And, since it was so hygienic, the occasional sound of two students seeking a quick bump up in their respective heart rates can be heard throughout the restrooms seperators.

As Adrian entered the big restroom, he could already hear the muffled moans of a horny student being pleasured.

Quite famously among the student body, this is done to relieve the stress caused by the schools hard curriculum - especially of those subjects, where the teacher was both strict and incredibly well-endowed.
A unwritten rule of this procedure: If you can hear the fun, you can join it discretely.

Adrian, now growing to a full-hard-on, located the moans and was happy when he saw its neighbouring stalls empty. He quickly hushed inside and closed behind him.
Parallel to the muggel world, the schools more perverted students have invented a new spell to support their horny rule - Foramus - creating a hole the size of a dick and a pair of balls.

Promptly packing out his sizeable rod, Adrian looked through the hole to see two fully naked female-passing students kissing and licking each others bodies. He stroked his cock and moaned loudly out of pleasure to make them aware of his presence.

Without any suprise, the student that was on top of the other looked to their side and through the hole onto Adrian. They smiled upon seeing him.

"Heyyyyy Adrrian, nice to see you", they purred

"Aaaah, fuck Axy, you are so hot. Can I join?"

"Yess, what are you waiting foooor - stick your cock ... aaaaah", a sensible lick of her ear by the bottom student made the petite brunette squeak and moan.