@Aponty  
The seat was so hard it survived nearly getting ran over. That probably didn’t improve things, since then it was missing a little chunk on the side.
 
I got a Torker UniStar LX after that for one of my birthdays. The seat is much more comfortable! Haven’t tried it without pants, though.

@AndytheDandy  
you probably had one of those rubbish vinyl unicycle seats with the seam, then
 
my crappy starter unicycle had one of those; it wore some pretty awkward holes in my pants
 
the modern Nimbus or KH seats are much better

@Aponty  
Mine did. Hah. I often rode in pajamas (those sleepshirt type of things without pants; I was 11 or so) and got those calluses. Mom saw them once at the beach and told me to scrape them off with a pumice stone when I got home. Knowing you’re supposed to put on lotion before doing that… would have been good to know at the time. I learned my lesson.

@AndytheDandy  
from my experience riding unicycles naked, not so much unless that unicycle has one of those nasty cheap vinyl seats with the seam that sticks out
 
but any mid to high-end seat is perfectly comfortable against even the barest of inner thighs

@Aponty  
I’ll be honest, what impresses me most is the leotard. Her inner thighs are going to get some nasty calluses from that.
 
@race’emhard @TheAntiCat  
The first of these “girls in leotards riding unicycles” images (>>812401) has no source or GIS results either. The second one (>>812643) leads to promising results: namely, this DeviantArt page.
 
Though the style is so similar GIS picked up on it, I dare not tag the artist because none of these are actually on the page. The closest was this to the first picture, but she’s in a different pose there.

Hah! As if she would wear a pink leotard!
 
She’s more of a black or blue kind.

judging by the one long crank that extends beyond the tire, and the one short crank that doesn’t extend past the hub, the only way to ride that unicycle would be to idle with the long crank on top, which would be extremely tricky even for someone good at one-footed idling and wouldn’t get you anywhere
 
which means that Scootaloo is doing something quite impressive, but most non-unicyclists wouldn’t even notice

The latter crossed my mind after I posted that comment.

@race’emhard  
Reverse GIS shows nothing. So it’s either tucked away where Google can’t find it or it’s OP’s personal work and they’ve chosen to host it here.

OP got it from somewhere, so maybe if OP was so kind to actually provide a source…