From Janet Jackson to Selena Gomez, there are so many hot ladies who made accidental nip slip so iconic.Wearing trendy patterned shorts and a fashionable silk unbuttoned blouse that showed off her tan bra Shayk, whose lips appeared slightly fuller than normal, looked. RM 2MR9Y48 - Model Irina Shayk has a bit of a nipple slip as she poses for photographers at Tao Beach inside The Venetian casino and hotel.