Complaints about "nipple burn" have led to a redesign of a roller coaster in Lincolnshire.
The Jubilee Odyssey opened in 2001
About a dozen women have complained to staff at Fantasy Island, at Ingoldmells, near Skegness, after riding the Jubilee Odyssey coaster.
It appears the straps on the safety harnesses provided a bit too much support for some peoples' liking.
Engineers have gone to work on the problem and £60,000 has been spent adjusting the harnesses.
A spokesman for the amusement park said: "As far as we are concerned, this is a serious situation.
"It is a problem that we managed to solve, but not without considerable expense.
"This is something that should not have happened, but it did."
The roller coaster re-opens this weekend after the winter break.
Jubilee Odyssey opened in 2002 as the world's longest suspended roller coaster.