Do you think Alien Vampires can be a thing?

I have a mixed occult household. Dad is an Alien. Mom is a Vampire. Both are pure blooded. First "try for baby" attempt took place on a dark ley line and resulted in an adorable female Vampire with her mother's eyes and, amusingly, the hair color and skin tone her father wears as his disguise :) Once Mom and Dad had survived the bulk of their little monster's toddlerhood, they tried for a second baby, but this time not on a dark ley line and were blessed with an adorable Alien boy who looks exactly like his father (Dad did not get pregnant thank heavens!). I don't believe the son is a hybrid since his mother is technically Undead and not human, but we'll see. I'd love to arrange for him to fall in love with a Vampire and produce an Alien Vampire Grandchild for his parents as an ultimate legacy.