Cat
It was incredible. As soon as Loki got comfortable with book in hand, drink at elbow, feet propped up on a comfortable ottoman, the cat came sliming into the room and hopped up on his lap. With a long, loud purr and a few Mrowrrs, Blot curled up in a small, furry button exactly where Loki intended to prop his book.
"Natasha!" he shouted.
Silence greeted his cry for help, and he realized with a surge of fury she was probably out of the castle. It was the reason he had a free hour to read in the first place.
Loki tried to wriggle around, to make his lap as uncomfortable as possible for the creature. Blot merely purred louder and began to knead Loki's legs with paws that felt as though they were filled with fishhooks.
How could he forget his enchantments? With a smirk, Loki elevated Blot. The cat hung in the air, seemingly surprised for a moment before taking it for granted with a sort of feline shrug. It started to wash its paws suspended in space.
Loki found a flat pillow embroidered with a rampant bilgesnipe and covered his lap before lowering the cat. Now, he thought triumphantly. He had his book, his drink, and armour against the fluffy intruder. All was peaceful and happy.
It lasted for two minutes until his two-year-old daughter came in and demanded to get up on his lap as well.