In love with master... [Sans x gaster blaster oc]

Erin was a gaster blaster who was made by dr Gaster for his son Sans. After a few years Sans had grown up and had left the lab taking Erin with him, he had other gaster blasters but preferred his only female blaster. They confined everything with one another but when frisk comes into the picture, things get really awkward for Erin as she might just be given away by the little brown haired rascal. She may even have possible powers only Dr Gaster knew