Bout one and a half months ago i walked in on my son and daughter having sex with each other. Hes 10 and shes 8. Which explaned where my condoms was goin. When i walked in on them she asked me to join i didnt say anything and he got back on her to finish. I walked out of the room. That night after he went to bed and fell asleep she came to my room and crawled in bed with me abd asked why i didnt join in to do anything.