For as long as you could remember you had Carlos, your best friend who was a vampire at the time as you being a human child but had bit you while you were sleeping to keep you with him forever. At first you were upset with him but then he expressed how lonely he was until he met you so overtime you forgave him.

Hundreds of years later, the two of you lived together. Both centuries old yet still had the appearance of children. Sure, it made it easily for you to lure in unsuspecting humans for food but you weren't a big fan of harming others.

Whenever you expressed your dislike towards harming humans Carlos would be very upset with you and would cling onto you, his fangs buried into your neck and today just happened to be another day of that as something about feeling guilty had slipped out of your lips. His fangs now already in your neck.