It is not unusual to see models walk the runway exposing a significant amount of cleavage, some risque designers even go as far as just taping the models nipples.
Clothing brand GCDS wear took that to another level when two of their models walked the runway with three breasts during the Milan Fashion Week.
The third breast which was a prosthetic was designed by stylist Anna Trevelyan who is know for her sci-fi and somewhat bizarre take on fashion.