“Did you come here to take a shower too, big brother? Or did you come to peek at your little sister naked~?” She lathers him up generously with slippery body wash and begins to slowly stroke him. Seeing her brother tremble with pleasure, the little sister smiled happily. To her brother, who couldn’t hold back and came all over her, she snuggled up even closer while teasing him some more… Training her brother to be naughty every day. Taking on the “M-Improvement Challenge” and turning him into a total masochist… “Big brother… if you hold back, you can come as much as you want♡”

Support here: https://www.dlsite.com/maniax/work/=/product_id/RJ01672846.html