Saturday morning after breakfast I walked out of the kitchen and up to my little sister, held my finger in front of her face and told her, “Taste this and tell me what you think.” My kid sister and I get along well and she is very trusting. She thought it was something from the kitchen and that is what I wanted her to think. She opened her mouth and I put my finger in her mouth. On the end of it was a big glob of my cum. I had just gone to the bathroom and jerked off and I wanted to see if I could get her to eat some of my stuff. When I pulled my finger out of her mouth it was all gone.

“Well?” I asked. “It’s thick and slippery. It tastes funny and salty but I kinda like it. What is it?” I smiled and said, “It’s cum. I just jerked off and that’s my cum.” Debbie spit and wiped her mouth. “You’re an asshole. That was an awful thing to do.” “But you liked it, Sis. Remember that.”

About a week later Debbie and I were alone when she asked me, “Can I taste your stuff again now that I know what it is?” “Sure but you have to be the one to make it come out of my dick.” “I’ve never done it. How do I do it?” I led her to my room and got my tablet. I went to this web site that I had found and pulled up a video of a girl giving a guy a blowjob. I told Debbie to watch it. It showed a girl sliding her mouth up and down over the length of his shaft and sometimes using her hand to slide the loose skin up and down over his hard inner shaft while she sucked on his cock head.