John's POV
In the morning, he is the first up and makes breakfast after kissing Sherlock. He has just started to set the table when Kyle comes stumbling in still half asleep with a mumbled hello before heading to the bathroom. When he returns he is a lot more alert and settles quickly at the table to eat. Not long after, his vampire joins them, casually kissing a spot on his throat before settling at the table where his microscope used to sit and drinking a hot, black coffee.
The day goes smoothly with the three of them spending time together. Kyle seems mesmerized when their vampire starts to cook and watches in fascination. Dinner is a lovely ham with all of the sides.
"You can cook?" the little boy questions in shock, in the month he had lived there he had never seen their vampire cook.
"Of course, its chemistry," his mate replies with a smile tugging at his lips, "Just because I prefer not means I cannot."
"Oh," the little wolf murmurs in shock, "This is really good!" He sounds amazed by this much to his amusement and Sherlock's annoyance.
When they are done, he suggests, "Go shower and then wrap the towel around your waist before coming back out here."
Blushing and nodding, the little boy does as directed while he changes into the pants that simply fall off during the change. A few minutes later, he meets the young wolf and vampire in the living room. It is not long after that that the moon rises and he changes, carefully watching as the little one does so as well. Once they are both wolves, he carefully steps over to him, sniffing nearly his entire body before kissing him gently on the nose. A few minutes later the two of them proceed to sniffing the entire flat and rubbing themselves everywhere before he carefully helps the small dark-brown and blonde pup onto the sofa where he quickly clamours onto his mates lapt while he hops up and stretches out before laying his head on Sherlock's leg.
They are like that for nearly an hour before his mate suggests that they retire to the room instead so that there is more space.
He agrees with this idea and quickly hops down while his vampire carries their pup in his arms to the bedroom. Together they curl up on the bed before falling asleep together. In the morning he is the first to awake and grabs one of his vampire's shirts to carefully pull on the little wolf before putting a pair of pants on and climbing back in bed.
The next two nights follow that same pattern. During the day the three of them spend time together, at night they do as well, though Kyle and he are wolves.
The last morning after the full moon, their little wolf makes a very startling announcement. "You both smell like family," before curling up on Sherlock's lap and going back to sleep.
Those three days set a pattern that will be followed during following full moons. The next few months pass in a blur as they settle in though there never seems to be time for just the two of them. Slow his mate returns to working with the Yard, on cases he joins them he leaves Kyle with Mrs. Hudson who is determined to spoil the boy. Occasionally the little wolf would go to Mycroft's for the night, but never around the time of the full moon.