Story rec (sad!)

Less than Ideal Kirk, McCoy, Spock gen - a realistic, super-touching, heartbreaking de-aging story: what would happen if Kirk became the "father" of a de-aged McCoy and Spock?

(Honestly, it's easier for me to read character death than something like that because this is daily, repetitive, realistic, hard-to-bear real life drama and I don't deal well with that. Phew.)