I've been addicted to anal ever since last december when I got fucked in the ass for the first time, so now I crave having something in my ass constantly.

One day during lectures I got so fucking horny and couldn't think of anything other than filling my tight hole while rubbing one out. I couldn't go anywhere since the room was packed, and I also didn't want to go to the bathroom mid lecture cuz people would notice me being gone a long time. I was furthest back in a corner and only people close was my friend who was listening to the lecture intesively. Then I remembered the pencil sharpener I owned. It was a small globe with earths map on it, maybe like 3cm diameter, with a decent base so It could stand on a desk. I don't think I've ever used it for sharpening any pencils. Now all I could think about was how good it would feel having that round globe stretching my ass.

I got it out of my pencil case and stared at it, no dirty spots or anything that could cause discomforth, It was also empty and the base felt robust. Would hate for it to break and slip inside me but at this point I just needed it inside me. A quick scan so nobody was looking before I took it in my hand under the desk and then carefully spat on my fingers and rubbed the surface of it all over. My jeans were pretty tight so I unbuttoned them a bit and mamaged to hover a bit without it being obvious. Hand slipped down my pants and into my panties before I now felt the cold metal pressing against my needy hole. My clit was on fire from how excited it was. I adjusted myself spread my cheeks withone hand before it got into the right positon. Then, hand out of pants and I slowly sat down. At first it didn't want to get inside, too little lube perhaps. I could feel it press on my tight ass more and more, I was so scared someone would notice. BUt I pressed down with all my might and like a plop it penetrated my ass. I let out a loud breath as it stretched my hole, almost too much and a bit painful fom lack of lube. But there was nothing I could do know, it was inside me and there it was going to stay. I got so horny my nipples was rock hard under my bra. I crossed my legs and the pressure from my ass and legs hit my clit perfcelty. I started syntribating, masturbating by rubbing my legs together.

I tried desperately to not make a sound but my god it's hard when you are horny and have your ass filled. I was soaking trough my panties but I just kept on going and going. My asshole tightened around it as I pleasure myself. Each time it tightened I felt a shiver of pain trough my body which only made me hornier.

"We have time to make that report now"

I heard my friend and looked up. She was looking right at me, oblivious to what I was doing.

"What?"

She looked at me with a odd expression.

"Did you fall alseep? It's over"

I looked down and saw everyone was heading out. Guess he let us go early.

"Fuck I muttered"

Then started packing my stuff.

"Yeah we can do that. Just need to head to the bathroom"

I stood up and the globe was pounding inside me, it was close to plopping out of my ass but I clenched hard and made my way to the bahroom. Inside I pulled my pants down and squatted with one hand holding the sink. The other hand began violently rubbing my soaked pussy. I bit down on my arm as my legs started shaking. My asshole pulsated around my makeshift plug. Then suddenly, release. I moaned while I bit my arm and the plug shot out of my ass with force. Air filled my gaping hole and I had to grab the sink with my other hand so I wouldn't fall over. I sat like that for a while before I could stand up again. I felt so fucking slutty. My pussy was visibly wet and I had a bite mark on my hand. I turned around to watch my tiny gaping asshole open and shut before I dried myself and pulled up my pants again. I still felt my soaked panties kiss my pussy as I pulled them back up. I had no plan of keeping the globe so I tossed it. Before I headed out I realised I could have just gone in the bathroom, inserted it before heading back instead of doing it in class. Oh well it made me horny doing it this way. Im defenitely going to uni with a real plug someday, but that would mean I would never pay any attention lol