 So, you got beautiful physics in all the most important places, but something is missing on the thighs. Not a problem. Copy the two butt spring controllers and paste them in front. If you're using the original UE5 mannequin skeleton, there should be two bones called thigh twist one left and thigh twist one right. Set the first spring to the left and the second one to the right. Then drag them to the end of the butt springs and drag the pose into the thighs. Compile, save, and you're done. Personally, I found the most realistic results when I set stiffness to 800, damp to 6, and scale to 0.1. But feel free to set the values to whatever you want. Hope that helps and as always, I hope you have a fantastic day and I'll see you around.