>>24067119Not all that much in itself. Some faint combination of dried spit, dried pee and butt sweet.
If she washed it within the last 24h that is.
If it starts smelling it gets bad rather quickly, the pee and butt sweat intensifying, with musky notes of ass juice (poop lubricant) and stale dick/smegma, but faint.
By day 3 or 4 pee, poop/farts, ass sweat and bacterial smells, like sweaty unwashed ballsack or taint smell plus fish, become pronounced.
Beyond this it's not something you want to contemplate.