Do you think Alien Vampires can be a thing?

I hope this isn't necroposting but I was able to get a "valien" without abductions or cheats. I had my full alien couple male and female move onto a property with dark leylines. They tried for baby. Bam! Valien female baby first try. A very pretty too. She is buggy though. Her dark form/disguise switch or don't show up. She has both alien and vampire features. Except the eyes. Vamp only options. She has both powers/interactions and shows vampire needs. I play on the console and of course no mods or cc. I plan on pairing her up with Caleb to see what happens with their kiddos. I am also hoping for a sibling valien. I will pair them off with a regular sim and see what happens.