You were taking care of Floyd, he laid across your lap calmly as you rubbed his tail. He was in eel form, meaning he was a lot bigger and heavier too. As you did this, you saw Riddle walk in. You wave him over, when he sees you he flinched, seeing Floyd. You invited him over. He sits next to you and looks a bit on uncomfortable sitting with Floyd around, even though he was doing nothing but chilling.