Older sister

I was masturbating to a magazine and my older sister walked in. There I was with my dick out.
"What are you doing?" she asked but she could see clearly what I was doing. "Show me the magazine. Do you find them attractive?"
"How about me," my older sister asked. She unbuttoned her blouse and took off her bra.
"What do you think?" My mouth dropped at the beauty of my older sister's breasts..
"Can I touch it?" she asked. My older sister took my penis in her hands and I touched her breasts. We kissed and I undid her trousers and pulled them down.
I guided my older sister to my bed and got her on her back. She was totally naked. With my mouth in front of her vagina I asked "Is it okay?" "Do it," she said. "Lick me," my older sister said. Licking her out I undressed myself. I put my penis at her vagina but she said no. "We can't do that," she said.

Instead we 69ed.

We did it on our sides. My older sister came first then I ejaculated in her mouth. She swallowed it. Later we kissed and I felt guilty about cumming in her mouth. I wished she'd spat it out.