Every summer growing up, we would travel across the state to see our relatives. Among all the grandparents and cousins and friends of the family was my mother's sister, who we called Auntie. Being ten years younger than my mother, Auntie was more in tune with 'the younger generation'. It was always fun to stay at her house. Her husband was a gruff sort who was nice enough, but treated her poorly. They had tried to have kids for years without success. It was a big deal when their first finally arrived. That summer I was eighteen.
At 6' 2", I was a skinny, gawky kid with a mop of dark hair. My hormones were raging and it took all I had not to stare at Auntie as she breastfed her little girl. Auntie's modest bustline had transformed into a large pair of bulging boobs. Auntie would make it a point to turn away from anyone or to go to another room, when she had to feed the baby. But I would listen and steal glances of her. I could see her fumbling with the buttons of her blouse. Her big tits were stretching the shirt taut and made the buttons harder to undo. Then I imagined she was pulling back the flap on her nursing bra cup. Once or twice I caught a glimpse of the inside of the flap. It had a trace of a yellowish stain. The stain of her mother's milk. It must leak from her tits when they are overfull. As I sat in the next room, pretending to watch TV, I felt my cock aching, as stiff as it could be. I rubbed it and adjusted it in my jeans so it wasn't as obvious.
I could hear Auntie making little noises as she nursed her baby. I thought she was cooing to the baby, but she moaned a little too loudly and smiled as she swayed contentedly. I realized she was turned on. And she seemed disappointed when the baby drifted off to sleep without relieving Aunty of her full bounty of milk, or her obvious arousal. She put the baby in its bassinette and hastily buttoned her top. Auntie came in and sat down beside me.
"I saw you watching me feed Jessica." She saw me squirming. "It's alright. I understand a young man being curious about things like that. Are you curious?"
I nodded, ashamed to look up at Auntie, much less speak.
"Well, since I had a baby, my body has been making milk for her. My boobies have gotten pretty big, huh?" she asked.