i don't really think about 2nd gen in fandoms/ships very often ever, i just don't really care about that side of it idk
but like anytime i see concepts for like krbk kids there's always the explosive aggressive one and the nice calmer one that's reflective of krbks personalities individually
but please allow me to raise you:
the chaotic child that is explosively aggressively friendly and is a combination of bakugou's aggression and extreme passion for everything they care about and kirishima's compassion for people and the wellbeing of those around them
and the sly passive aggressive child who has inherited bakugou's ability to come up with quick witted remarks in response to the bullshit the idiots around them spew as well as kirishima's general people skills and ability to hype up people
both are the perfect chaotic good menaces to society that i feel like would come out of the concept of these two being given children to keep alive together
the explosively aggressively friendly one and the well-meaning charismatic asshole
<3