After snuggling into bed I pulled the blankets over my head. It had been a long day and my eyes were incredibly heavy. I began to doze off when I heard my door creak open, it was probably just my cat, <em>make up a name</em>. I pulled the blankets down to let <em>insert cat’s name</em> in, but was met with a glowing, dancing light coming from the cracked door. I could not remember leaving the hall light on so I silently crept out of bed and peered through the crack. In my living room stood two men in long counts talking. I strained my ears to hear, but the language was unfamiliar. They both wore long trench coats and dark sunglasses. I leaned in further to see if I could make any other details out. The floorboard creaked. The men whipped their heads towards me and suddenly I could make out a long reptilian tail peeking out of their trench coats. They began to push their sunglasses up and their blood-red eyes pierced into me. I blinked and suddenly they were gone. I crawled back into bed for the night after shutting my door assuming this was all apart of my imagination. When I woke up in the morning I found <em>cat’s name</em> curled up with a pair of dark sunglasses I did not recognize.
Explanation:
there are three places where you need to insert a made up name for an animal. obviously I would advise adding in some more alien details but this should get you started