The 2014 competition was won by Indianara Carvalho, but she caused controversy at Easter when she painted the Virgin Mark on her naked body
Curvy Miss Bum Bum candidates stripped to skimpy swimwear to promote the popular beauty pageant.
Wearing just thonged bikinis, the women drew admiring glanced from unsuspecting passengers jumped aboard the underground.
The cheeky flesh-flashing display took place in Sao Paulo during rush hour.
Showcasing the Brazilian colours, the models flaunted their potentially prize-winning behinds in sky-high heels.
Each of the women also wore a sash displaying where they were form in Brazil.
Last year Miss Bum Bum contestant Dani Sperle also flaunted her booty on public transport, when she boarded a bus in just a bikini.
The 2014 competition was won by Indianara Carvalho, but she caused controversy at Easter when she painted the Virgin Mark on her naked body.
This year's competition however, has one of its most diverse and colourful line-ups ever.
Among the candidates are a grandmother, a virgin and a model with 10 litres of silicone in her breasts.
Public online voting begins in August, with the finalists facing a ceremony in Sao Paulo in November.
Source: Daily Star