EBWH-365 I asked my gentle, laid-back sister-in-law, "Let me have some breast milk," and... — Fumika Kashiwagi

During summer vacation, I’m looking after the kids at my older brother’s house, as both he and his wife work full-time. My sister-in-law, Fumika, recently returned to work after maternity leave but was uneasy about leaving the baby at a daycare center, so I stepped in to help. Fumika is a beautiful, kind woman—honestly, I envy my brother. That said, she’s a bit laid-back—or perhaps just a little scatterbrained. Case in point: Even though I—her brother-in-law—am right there in the room, she doesn't mind lifting her top to start breastfeeding. "Lately, my breasts get so full... they're absolutely bursting." She seems completely oblivious to the way I keep stealing glances at her breasts. Driven to the absolute limit of my arousal, the words just blurted out before I knew it: "P-please... let me drink your breast milk, too!" Naturally, things didn't stop at just breastfeeding... And so began a daily routine of having wild sex while gulping down my sister-in-law Fumika's breast milk.