GIrls' Butt Sniffing Fetish

My cousin who is 1 year older than me let me smell her ass when we were teenagers i was 13 she 14 and she pulled her panties down and I put my nose between her butt and it smelled like ass ( not shit but like that sweaty stinky smell) and then she spread her buttcheeks and the smell of ass reached my nose and I saw her butthole and it was really smelly and sweaty, and I smelled it and my face smelled like ass for the rest of the day and I loved it and I asked her to rub her butt all over my body and she put her naked butt and sat on me and wiped her butthole with my clothes, I know she's my cousin and its not right but we did not ave sex and her butt is perfect and smelly so I couldn't resist(but I did put my finger up her butt) and ever since then when we feel like it she let me smell and see her butt whenever I want or when she wants, I'm not the only one who she lets smell her butt she told me that she lets her buttcrack show at school and she lets a boy in her class get behind her in class and while she's sitting in front of him he reaches under the desk and he puts his finger in her buttcrack and then touches her butthole and then smell finger, she says that he loves her butt and she invited him to her house and she pulled her panties down and bent over and spread her butt open and showed him her butthole and he put his finger in her butt and smelled it, my cousin is a butt girl