Piloerection (goosebumps), the physical part of frisson. Frisson (French for 'shiver '), also known as aesthetic chills, musical chills, and colloquially as a skin orgasm , is a psychophysiological.
If she has an orgasm the goosebumps show up on her butt and thighs like clockwork. As far as I can tell it happens every single time. So I had started noticing.
Seven Types of Female Orgasm – or – Annie Sprinkle's Models of Orgasm massage, calls the goosebumps that occur from this kind of orgasm, “orgabumps” .