Fisting a girl on her period, thus getting a red circle around the wrist area.
John fisted Amy when she was having her period, giving him a red wrist.
A red line that forms around the wrist when you fist a girl on her period.
JB was fisting the hor while she moaned uncontrollably. When he took his fist out of the cunt, his wrist was coated with a line of blood from her period, thus giving him a red wrist.