Kagaku na Yatsura

Haruki is a teenage boy who has two friends that are not very ordinary Ayana has been transformed to be part dog as shown by her dog ears and tail Ayana also has enormous lactating breasts Airi on the other hand is a cyborg girl and shes got tons of mechanical gadgets The story begins when Ayana and Airi both want Haruki to join their club and Haruki must pick one over the other Ayanas science club has more to do with transforming living things whereas Airis has to do with more mechanical science Their attempts to persuade Haruki to their side tend to be full of nudity and sexual arousal Haruki is going to have a bizarre school life