Usually when a second insect lands on a flower the one there first takes off. These two seemed oblivious to the other and kept about their work. Although lady bugs, lady birds to some, are known as predators of smaller insects they do also gobble up pollen when they find some. Since it is on a bud I’d guess something microscopic is being devoured but he/she may be probing for pollen. No doubt about the bee’s motives.
Western Honey Bee-Apis mellifera and Asian Lady Beetle- Harmonia axyridis
I tried flipping the image but knowing how I captured it, it just didn’t look right. Hope upside down doesn’t make you dizzy.