May is the boob companion for a reason. Or rather, two reasons.

>>57896888
>>57897038
I wonder who's creative decision it was to have them so big they can be seen from behind

Anons, what do you think caused May to have such big tits? Genetics from her mom? Sudden freak blessing from puberty? Some food she ate? Some act she did? Lemme hear those H-cup Headcanons for Haruka.