No those are not "Hot Pants" but my ass was hot when I sat down on the dang seat again! What is it about black bike seats that allow them to suck in and radiate the heat of class M sun, so when you sit down, you feel like Joan of Arc! HOLY GOD! MY ASS IS ON FIRE.
Luckily, it only lasts a few seconds until you start moving. But when you are caught in a traffic jam or at a long train, you are really screwed.