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

As a kid me and my girl cousin would touch each others butts one day she pulled her pants and panties off and I saw her naked butt and she smiled and she bent over and spread her buttcheeks open and I saw her butthole and she said now touch it and I touched her buttcheeks only because I thought her butt would smell bad so then she said "no not that touch my buttcrack and butthole" and then I touched her butthole and she said " smell it" and I smelled the finger that I touched her butthole with and it smelled like dirty stinky ass and she said " does it stink" and I said yes but I also loved it, and she smiled and told me that she didn't shower and she said "my booty is dirty right now and it stinks" and then she touched put her finger in and out of her butthole like she was having sex with it, and she said " oo it feels so good in my booty" and I jacked off watching her and her pussy was very wet and she sniffed her finger that was up her butthole and loved it she said " o yeah my stinky butt" and she said "look at my butthole" and she spread open her butt again and I stared at it and the smell of stinky ass came to my nose and I jacked off again cummed everywhere and she smiled and said "you dirty bad boy"and I told her " you dirty butt girl" and she laughed but we heard her mom walking down the hall and she put her pants and panties back on and her mom came in and asked if we wanted to go out and eat, and we said yes, her mom had no idea what we were doing it was strange to know that she didn't know her daughter was letting me me see, smell, and touch her butthole and then we went to go eat and in the car seat in the back we were sitting and she said watch this and my cousin pulls her panties down spreads her butt open real fast and picks her panties up again and my dick was hard her mom had no idea she had shown me her butthole again