A demurrer is of two kinds; general or special. With respect to the effect of a demurrer, it is a rule that a demurrer admits all such matters of fact as are sufficiently pleaded. Again, it is a rule that on a demurrer, the court will consider the whole record and give judgment for the party who, on the whole, appears to be entitled to it.
Thighs hurt only when sitting. When I sit, the back of my legs (both)ache. It hurts between the back of the knee up to the butt (the thigh muscle). But more just above the back of the knee. Also more when I sit on a soft couch or chair, opposed to a hard chair. When I stand, walk or run, even for miles.
The result is oxygen-depletion in your legs, giving you that heavy, tired feeling. Leg pain from prolonged sitting or standing. In addition to getting you going, your leg muscles massage your veins and get your blood going! During prolonged periods of sitting or standing, your blood may collect in your legs and ankles.