You can't ride Amelia-Amber because, she can only handle 1 rider. If you try to add more weight to her, she may NOT carry her weight correctly.

Also, you can't mount on Amelia-Amber because, your extra weight may cause Amelia-Amber to NOT balance her riders correctly. You must get the weight ratio correct.

However; Amelia-Amber is already taken! And you may need to find a large poodle what you can ride,--if 1 exists.