When I was a teenager, a couple friends of mine made up a story that they saw me go out the backdoor of the local bowling alley, grabbed an icicle hanging off the roof, and stuck it up my ass. Even though they made it up, over 25 years later they still keep talking about that story like it's true. Told it in front of new friends, girlfriends, even my (ex) wife.
Funny thing is... Though I didn't do it, and had never even thought about doing it, much less tried it at the time that they made up the story... I absolutely loved the idea after they mentioned it. So did some of those gfs they told lol.
The very next day, I went out behind my house, snapped a couple icicles off the lowest part of the roof and slid them in, one by one, replacing them as they melted. Once I got over the initial cold shock, it was amazing. It doesn't just feel naughty, but it actually feels very clean and refreshing when I'm done. Like, there are so many things that I've tried and after I cum I feel just disgusted with myself after.... this was the exception! I felt fucking great after doing it! One of the best things I ever did (and still do) and it's all because they made up a stupid story to make fun of me! I would thank them, but I'd never admit it! Lol
I will caution...and I learned the hard way... That if you do try it yourself, don't treat it the same as other things you might stick up there. Don't ram it in there hard (well, maybe a little at the very beginning, but not for long!) as the icicle melts quick from your body heat, and it tends to melt into a very sharp point! So you gotta take it out every 30 seconds or so and check it, break the tip off if it's sharp before putting it back in! As long as you don't accidentally poke your self and bleed (seriously, be careful!) It is an absolutely amazing experience!