[EBWH-365] I asked my gentle and kind sister-in-law, 'Let me breastfeed,' and... Fumika Kashiwagi

During summer vacation, I'm taking care of the kids at my brother and his wife's house, both of whom are both working. My brother's wife, 'Fumika,' has returned to work after maternity leave, but I'm still worried about leaving her elsewhere, so I ended up watching over her. Fumika is a very beautiful and kind person, and honestly, I'm a bit jealous of my brother. But he's a bit gentle and a bit absent-minded. That's still true even now. Even though I, his brother-in-law, are in the same room, he ignores his clothes and starts breastfeeding. "Lately, my breasts have been really full~ they're so full~" He didn't seem to notice my glance at her breasts at all. My arousal had reached its limit, and before I knew it, I was blurting, "Oh, please let me drink breast milk too!" Of course, it wouldn't end with just nursing... From there, the days began, where I gulped down my sister-in-law Fumika's breast milk and had sex nonstop.