56KiB, 567x603, D2B71FF3-835F-4B4A-B59A-3E6E81EC9283.jpg View SameGoogleiqdbSauceNAO Anonymous Mon 20 Sep 05:07:44 2021 No.13661341 ViewReplyOriginalReport Quoted By: >>13661509 If the function f(x,y)= xy^3-x^3y is a dog saddle, how do you create another spot for his tail? pls help bros