I've had quite a few over the years! They're usually quite silly.
The latest one I had was where I was invited to a large cabin out in the woods by a lake for a furry party. But when people arrived and put their fursuits on, they actually became
their fursona, rather than just being a human in a fluffy costume. I followed suit and put mine on, becoming my fursona. I remember the main thing about getting used to my new form was having digitigrade legs and feet - it was quite different from walking on human tippy-toes! All of a sudden, someone noticed it was snowing outside, and we all rushed out to play in the snow. The lake had frozen too, so some of the furries were skidding around while others were throwing snowballs and such. I was still wobbling around on my kitty feet.
When we went back inside Deadpool had arrived! After he said he didn't have a fursuit to change into, one of the furs said they had a spare cheshire cat outfit he could have; I whispered to him, "I wouldn't bother, it one of those rubbish
cheap onesies." He then replied, "bleep
it. Who cares if I end up looking stupid?" He ends up putting on the cheshire cat onesie, but doesn't transform because that isn't his fursona (if he even has one at all). After that, we all played Twister and various other games together!