One fateful day Alphys saw Annoying Dog. Alphys wanted a pet dog so she captured Annoying Dog and dressed him up in cute dog clothes. Alphys went to Undyne's house because she likes playing with fire. She saw tEmmIE there and immediately sent her to cool leg because Alphys wanted alone time with Undyne's house. Annoying Dog was still there but what the hell. Alphys was filled with DETERMINATION so she melted into Undyne's house and now they are together forever. Same thing with Annoying Dog and Temmie when she got back. Her cool legs didnt melt though and Sans took them.