Milky Fragrance

That night I sneaked to my sister's bedside again. Seeing her small mouth slightly parted confirmed she was in a deep sleep. I flipped up the white T she was wearing and used the webbing of both hands to try pushing her breasts together toward the center. Maybe because my sister's B-cup isn't very big to begin with… there really wasn't much visual effect. I leaned over her chest and vigorously inhaled that seductive milky aroma, but getting closer… and closer…, I finally couldn't resist taking her left nipple into my mouth.
At first I was afraid of waking her so I didn't dare suck hard. Later I sucked with small movements… gradually increasing the force until I could finally nurse on the nipple without worry. Oh… so nursing is this fun! Next I stopped sucking. I stuck out my tongue and used the tip to flick her nipple while teasing the other one with my fingers. Glancing over, I saw that nipple engorge… and harden under my fingers, looking quite appealing! I don't know how long I played. She must have been stimulated and rolled over, so there was no way to continue. I had no choice but to slink back to sleep.