The Joker is awfully domestic, in his way. He makes pretty clothes. Nathan's perfectly happy to be a clothes horse for his sartorially-inclined mate. Some of the clothes are distinctly feminine, and Nathan does not wear those, although the Joker could probably talk him into a kilt, even if that's not a Manx thing but only their neighbors.
Nathan looks at her with a completely faux innocence as they reach his door.
"So, I'm gonna conjure the munchkin a crib," she says brightly, "and put it somewhere way out of our way, and then I'm gonna soundproof our room."
"That sounds good to me!" says Nathan brightly.
She conjures a crib and tucks the baby into it, then slides it all the way into the corner by the door.
She tips her head to one side and says, "And now I won't get pregnant again until I wanna."
"Soundproofing up, babe?" asks Nathan.
He's paying attention to when it'd be a good time to quit having sex, right? Because his mate definitely isn't.
He checks after seven hours, and says, "Forty-five minute warning, babe," at the next lull in activity.
Her turn to pounce!
Kerron wakes up right on schedule and says, "Eee."
"Hi, cutie," says the Joker, leaning over the crib to give the baby a good-morning kiss.
"Morning, kiddo," Nathan says, scooping up the baby, narrowly avoiding getting bitten, and popping the end of a glass bottle of bubbly into Kerron's mouth. Kerron approves and downs the entire bottle in about a minute with a blissful expression on his face.
"Half-vampires are about two steps up from pet rocks in maintenance. Feed once daily, do not psychologically scar," Nathan says, and he tosses Kerron and catches him a couple of times, to Kerron's immense amusement.
"Whoooo's easy to take care of? Izzit you?" Nathan asks, catching Kerron and holding him eye-level, arm's length. "I think it's you!" He hands the baby over to the Joker.
"Awwww little munchkin," she says, giggling and hugging the baby, and then hugging Nathan too for good measure.
"Aaaaah," agrees Kerron, and he bites at the Joker's arm.
She wishes herself impermeable before the teeth connect, and then lets him chew on her ineffectually.
"Half-vampires don't become -" Nathan does a swirled-finger gesture in the direction of his own head. "Anything in particular in response to the taste of human blood, any more than human children do if allowed to eat cake. If that's what has you concerned and not something else."
"No, it'd just be weird to have my kid getting his teeth in me," she explains.
"Um-num-um-num," Kerron says around the Joker's wrist, "raaaaa."
"God, that's cute," Nathan says.
She can have hugs. She can have all the hugs she wants.