Three short lines, and a lot of affection packed into them. The speaker watches two pets going about their ordinary business: a cat purrs on the floor, and a dog, called "Doggo," licks his lips. Nothing dramatic happens. That's the point. The poem catches a small, relaxed moment at home and treats it as something worth noting.
The last line is where the feeling lands. The speaker names the animals, Onyx and Midnight, and calls them "my boys." That phrase sounds like how someone talks about family, with pride and ownership that's really tenderness. The dark, night-like names also suggest the animals may have black fur, though the poem doesn't say so outright. The mood is warm, cozy, and content. It reads like a snapshot: simple, affectionate, and happy to stay small.