Something tells me that she didn’t have the slightest idea that there was someone down there. Unfortunately, she figured it out when she looked down and saw a lot of blood on her butt.
Apparently, a tiny person was there when the giantess decided to sit. Poor guy, he didn’t even have time to escape. He was crushed in a moment.
Giantesses should be more careful. Otherwise, there will be quite a lot of victims. What’s more, there is no point in getting angry because of some blood stain.
Credit to Redswolf