I'll say it until it's something you internalize and replace with all other notions of use.

[They're off the stairs now, but the vampire is so very, very still. Trevor needs to hear this. It upsets him sometimes, how Trevor views himself, how easy to throw away he thinks he is. That kind of perspective, it's mortifying to hear from anyone, never mind someone so terribly precious.

The stillness lingers.]

We both will. Forever, if we have to. Because you're not ust a Belmont to us.