An alarming new study released this week explores a practice called stealthing - where men remove condoms during sex without their partner's consent - and the online communities that encourage this behaviour.
"Non-consensual condom removal during sexual intercourse exposes victims to physical risks of pregnancy and disease and is experienced by many as a grave violation of dignity and autonomy," states the study, published in the Columbia Journal of Gender and Law.
"Such condom removal, popularly known as 'stealthing', can be understood to transform consensual sex into non-consensual sex by one of two theories, one of which poses a risk of over-criminalisation by demanding complete transparency about reproductive capacity and sexually transmitted infections."
Study author Alexandra Brodsky said she wanted to study the phenomenon after she realised so many of her female friends were having negative sexual experiences.
They were "struggling with forms of mistreatment by sexual partners that weren't considered part of the recognised repertoire of gender-based violence, but that seemed rooted in the same misogyny and lack of respect," Brodsky told the Huffington Post.