crosswalks painted to promote a recreational sex practice.
wife swapper crosswalk.
bondage crosswalk.
animal sex crosswalk.
BTW did anyone tell these rocket scientists the act of stepping on a symbol is considered a show of contempt to the symbol.
also, that paint looks slippery and dangerous for cars and people.
Some homophobe will probably paint over it in regular yellow or white paint, be caught, and do years in prison for a “hate crime”.