I'm a "Sirius" fan of the Harry Potter universe, so naturally I have fantasies about adult versions of that world.
Lucky for me, there's a lot of "Harry Potter Porn" on the internet these days: stories, videos and photos.
There's also a lot of Hogwarts-fantasy fetish material and schoolgirl uniform roleplay, too.
Here's just a "Slytherin" of samples I collected from C4S, some of which are my own!

Slytherina Slytherin

Slytherina stars in Erotic Magic videos by Hypnokink
slytherin headmaster forces gryffindor witch to strip naked Slytherin-ish headmaster forces Ariella to strip naked until she's like a Naked Gryffindor
Witch Wanda gives a magical blowjobWitch Wanda gives a Magical Blowjob
Slytherin student hogtiedA Slytherin-type student becomes a Hogtied Schoolgirl
Sexy Hogwarts GirlBrunette pretends to be a Hermione-Gone-Bad
Schoolgirl in bondageCollege Schoolgirl Bondage inspired by the Harry Potter universe
School Girl Uniform Cock TeaseSchoolgirl Uniform Cock Tease
Magic BondageRivals at Wizard College conjure Bondage Magic
(Use the wordsearch box there for "Wizard")
Crushed by a SorceressA Slytherin-like Sorceress Crushes with Magic
VibratorVibrator Fun a la Harry Potter Schoolgirl Uniform Look
Tied School UniformBig-Tit Student Bound in Uniform
(Use the wordsearch box there for "College")
Hard Fucking in School Uniforms a la HogwartsHard-Fucking College Schoolgirl a la Harry Potter porn tradition
Harry Potter porn fuckA nod to Harry Potter porn sex ... LOL
Rope MagicStudent Gets Rope Detention
(Use the wordsearch box there for "Naughty")
Schoolgirl Spanking RoleplaySchoolgirl spanking roleplay suggests Hogwarts Punishment
Lesbian College SchoolgirlsLesbian Hogwarts Types?!