For the uninitiated, cum tributes—commonly referred to as “tribs”—are a transactional, and largely heterosexual, act: A woman posts a photo of herself to a public forum in varying states of naked repose, alongside captions such as “Sunday morning horniness…I need my tits soaked :)” and “I love cum on my ass, any takers?” In return, men provide the requested cum, either by masturbating onto a printed photo or directly onto their tablet or laptop. Though posters and tributers sometimes build a rapport that … Inside the sexy, subversive world of cum tributes