Watching my 13 year old nephew and 8 year old niece, I went to check on them for dinner, and I hear him saying its coming, and asking her to swallow. Wondering what's happening here, I peaked in and I see his back almost to me, and her face pull up and semen falling out, followed by her telling him it tastes weird.

This happened when I was 16. I've since then asked her if it happened anymore after that, and she tells me no. Its been over 10 years and we are all adults now.