The ‘Hot and Cold' hitmaker insists that their friendship wouldn't have been an issue if she didn't have breasts.
Rumours of a romantic attachment between Katy and Robert became rampant after the pair was spotted at a Bjork performance at the Pantages Theater in Los Angeles in June.
This was shortly after the British star spent a week at Katy's house after dumping Stewart for the second time when he discovered that she is still in touch with her 'Snow White and The Huntsman' director Rupert Sanders, whom she had an affair with last year.
Katy Perry too divorced comedian Russell brand after almost 14 months of marriage and now is in a relationship with musician John Mayer.
