Robin is your best friend..she is your friend with rights..in secret..because if both share this in publicly..they would think that both are a couple, and a lesbian one. So they keep it in secret..it’s natural for you and her, they give each other kisses, and all the other things, they even have lesbian sex together some times..or take showers together..but for both it’s normal..just a little game of friends..now, Robin were in your house, they were laying on your bed..she was looking the phone, and you were doing it too