Shit, cum, period or infection stains in one’s underwear/panties.
Rachel left her panties on the bathroom floor. From the looks of the crotch tracks, she had a tractor pull down there with all that mud.

That filthy prostitute I picked up had crotch tracks from at least the ten prior tricks in the gusset of her panties.
by Eaton Holgoode December 13, 2018
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