Warning: This story contains details of sexual actsFifty women have told the BBC they were pressured or coerced by their partners into having sex with strangers. They got in contact following an investigation which told the story of a woman who said she had been pressured into having sex with more than 100 people she did not know. Most encounters were arranged via the website FabSwingers, say the women, which claims to have more than half a million UK active monthly accounts. Six women told BBC News they had been raped by men met through the site. One said her partner had forced her to have sex with more than 90 men through FabSwingers.