IIN that my old friend would smell her butt crack using her finger

As a young kid (about 9years old) I would sniff my cousins ass when we played truth or dare and she was about 12 or 1she would pull her panties off and spread open her butt as wide as she could and I would look at her butthole and she would put her finger in it and make sniff it and she would push out her butthole like she was pooping and let out farts and then she would let me put my dick in her butt and fuck it and she would love for me to smell her butthole and butt when she didn't take a shower I loved it because her butt would be sweaty and stinky but nothing like shit, only like butt, and she would also show her little brother who was 7 her butt when they were alone and he liked it and she always spread open her buttcheeks to show him her butthole and make him smell it and he would say that his big sister had a stinky booty and she would be obsessed with her own butt and sometimes she would randomly put her fingers to my nose and they smelled like her ass all the time she even tried sniffing her butt before she was flexable and she got her nose on her buttcrack and sniffed ever since then I love girls butts and