麻豆社

Anna says she's experienced unwanted violent acts during consensual sex - and says some men think this type of violence is "normal".

Over a third of UK women under 40 asked by the 麻豆社 say they've experienced choking, gagging, slapping or spitting during consensual sex.

The research comes after recent cases have heard defences of "rough sex' - such as that of murdered British backpacker Grace Millane.