I've seen quite a lot of cute things in all the years I've had cats, but I think the cutest/sweetest thing I've ever seen was when the kittens were about 4 weeks old and still in 'lock-up' in their room, and Salem (the momma) would come sit at my feet while I was eating for a 'handout', then proceed to take the food into her babies to eat.
She would carry the food to them like a proud lioness who had just caught her prey. It was just so sweet & precious!