They Worked At Pizza Hut Together
“My dad, my mom and my (now) stepmom all worked at Pizza Hut together. My stepmom also lived across the street from us (I was 8?).
My mom and dad split up, my dad got with my stepmom, knocked her up, got back with my mom 6 months later and knocked her up, then went back to my stepmom. This is why I have a half sister who is 6 months older than my full brother.” Story credit: Reddit / @duckiemcgee