silentellipsis said: Actually...ice skating blades tend to be fairly blunt in the middle, so this is probably comparable to touching his penis with, say, a ruler.
Nabigou said: The "blades" are also a fair amount thicker than you'd expect if you've never been ice skating.
At worst, she's just come off the rink and they're cold.
However, say that she just had her feet on either side of his penis, when suddenly there's a loud bang and someone comes in. The surprise might make her suddenly squeeze her feet together, squishing anything inbetween them.
I guess still not enough to decapitate him, though.