Koakuma Bath Time [English], by Shouno Kotaroo

Coming back to his hometown for the first time in six years, the male hero, a young adult, is practically assaulted by a younger female friend. Who has grown up magnificently. And who knows exactly what she wants, how she wants, and proceeds to helping herself I didn’t expect the girl to show such brazen behaviour, such self-confidence, that musn’t be her first time. And the ending… LOL !

Graphically, that girl’s a delight ! Cheerful smiles, lusty expressions, large breasts, flowing dark hair, yum ! The whiteout censorship ruined part of the fun, but not all of it ^^
Credits are for Ktrans and Mumyng, from Corwrkool, thank you !

By the same artist, also known as Pannacotta, I also share Hatsujou baby (222 pictures) and a pack of 4 works.

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Or you can also use the Alternative :
Zip Mirror #1 – or – Zip Mirror #2

A side note, but FAINT SPOILERS WARNING : I couldn’t help but think there was an age progression problem. No very young girl can grow so well in just six years, her behaviour shows it’s not just quick body growth hiding an oppai loli of sorts. So, she had to be older when they parted. If you’re faced to that issue too, I *think* the logical explanation could be that the male hero, being older, pictures himself the girl as much younger than she is.
Or, heck, it’s hentai, why would it have to make sense, sigh