Was this her masturbating?

Earlier today my wife is lying on her back on the bed with her head propped up with some pillows. She had her right leg folded so that her foot was close to her rear and her knee was pointed to the ceiling. Her left foot was also folded but her knee was closer to the bed. Her left toes were tucked in between her right calf and her right thigh. Her heal was against her crotch. She was wearing shorts and panties. She rubbed her heal across her crotch as she was typing on a lap top computer (that was sitting on her stomach). She rubbed her crotch for a while, but she did not seem to get excited or anything.

My question is, was this masturbation or not? Or was this just a comfortable spot and something to do with the heal of her foot?

Anybody else seen something like this? Or done something like this?

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