unfortunately no story of demonic possession, only attacks. One in college a few years ago, one recently, although it could have been just me.
both times have made me step up my practice in protection magics and their various forms. They also always occurred late at night, and started with me being asleep.
The first one was during my freshman year, in the new freshman dorm. It was the end of the year, and I was sharing a room with this big computer gaming geek. He was going to be up all night playing in one of the computer labs, and I was exhausted and had gone to bed early. I started having this dream, where I was in the dorm, engaged in a game with water guns, and I have dived off into a bathroom to refill my gun. Although, suddenly it was like stereotypical old lady bathroom with lace and pastel hand towels and "Love is" figurines. So, I go to refil, and I start sweating. and it starts normal, then in seconds just runns up until its like standing under a showerhead. The bathroom starts to flood and I try to go to a drain or flush it away, and as I am starting to submerge suddenly I think, "WAIT, I AM DREAMING" and bam I am floating in this void, and there is this fleshy thing trying to swoop at me. At this point, I wake up and at the foot of the bed is this humanoid shadow, but with three dimensional features and somehow all the light in the room is outlining it and following it. My heart is thumping in my chest, and I couldn't breathe. It was advancing on me, and kinda looked like it was getting ready to taste me or something. Finally all I could do was just Pray ( I know kinda hokey but it was all I could think of) SO I start doing the Lords Prayer and it fled, after about three repitions. After that, I got out of bed, and cleansed the room and the next day warded it to high hell. I did not want a repeat of that.
The more recent one I was again sleeping, only this time I immediately started dreaming of being beaten up by this thing that was all arms and scales it seemed. After a bit I awoke again, terrified and feeling pummelled, and there was this small dark splotch hanging over me. I focused and performed a banishing pentagram and it vanished. My house used to be more protected, but its being remodeled and I think that it took out some of its defenses. So, now I just focus on protecting me, at least until this remodel is done.
So thats my demonic stories. Nothing fancy.

You name it, I had a problem and a run in with it.

i think i had ghosts or someshit humping my crotch and ass while i was laying in bed . it felt like invisible man/woman was humping me . this lasted for years.also when i was working with the crystal skulls not so long ago. my legs felt possesed and i just wanted to keep on walking.maybe being led to the direction of another skull(who knows).

and if you ever been addicted to anything i consider that demon possession.

I once had a moment in the Other world where I was standing in my bathroom and my reflection appeared to be a somewhat classic red skinned horned demon. It was telling me I was responsible for the death of well, pretty much everyone as the world was a frozen painting with the bombs getting ready to fall. "It's all your fault," said the man in the mirror. I had chills running down my back and felt awful. Then I proceeded to smash my head into the mirror and woke up.

Haven't ever been able to quite write that one off as just a dream, as I still see the guy from time to time. We're friends now, as I decided to blow him kisses and suck the hate out of him. Well, ok we're not friends but I do null his annoying behavior with kisses, and no I ain't gay, but go ahead and make the wisecracks if you must.

I also had a strange visionary experience in that bathroom, though I never really made that connection till now. It's not like I didn't have my own room, I've seen creepy things in there too, but not like mister Redface.

I'm pretty sure I just have a huge connection to water, as I met my Angel on the shore near the bridge of my driveway (long quarter mile driveway, stream runs behind the whole property. I never did believe that certain ghosties have problems with water, but who knows what might have happened otherwise.

Oh yeah, the Angel scares me more than any demon, I'm still not sure he is an Angel, but I call him Machidiel, since my Birthday is 03/30/1982, and Machidiel is attributed to be over The sign of Aries, month of March, Season of Spring and Day of Tuesday. I won the whole deal on that. I once became very crazy from taking stackers with ephedra and drinking too much on New Year's Eve and apparently I claimed I was Machidiel the Archangel of Chaos, apparently thought I could fly too, but was nice enough only to punch things I knew wouldn't break. I got rugburn on my forehead, because I was contorting my body to escape from my friends who were trying to keep me in one room, and they later told me it looked like the exorcist, and I was muttering weird noises and bulging my eyes. I escaped from them a bunch of times, my poor friend who was fresh from the Army wanted to slug me so I would sleep, but nobody would let him.

When I became sane the next day I didn't feel like I had a hangover, I felt like I HAD been possessed and I couldn't look at any of my books for quite a while, even fantasy books that made no claims to the truth of their stories about Demons. I actually met the being that seems to respond to the name Machidiel years later, at home as I have said. I think the role of Archangel of Chaos fits him well, he's threatened to kill me but he was just getting my attention, and he wields my tattoo as his sword.

The circle ends where it began and I say to those that want to let the demon in, probably bad Idea, but I get through the baddies now by letting them smash into me then around me, like a splitting wedge, same as I smashed my head into my Demon reflection.

When you feel tough enough, offer them kisses. It's not the love that gets them, it's the lack of being spooked and the kindness.

Cracked like a mirror,
AJ