S Rank Boukensha de aru Ore no Musume-tachi wa Juudo no Father Con deshita - Vol. 1 Ch. 2 - Elsa, the eldest daughter

[MensCultureUnion]

how the hell does a 10 year old have breasts that large? like, they aren't huge or anything, but they're definitely bigger than at least a normal teen. They're certainly big enough to be an adult's.

 

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"Elsa, the oldest of the three"
How the hell does he knows her age/birthday!?