Jemma Benjamin, 18, was kissed by fellow university student Daniel Ross, 21, at his home after a night out together.
But Miss Benjamin suddenly slumped onto the sofa - and died in front of Mr Ross's eyes.
The inquest heard Jemma died from SADS, a rare heart condition which kills 500 people in Britain each year.
Mr Ross, who had known Miss Benjamin for three months, tried desperately to save her before paramedics arrived on the scene. ...
A post mortem examination by pathologist Dr Jason Shannon could find no medical reason for her death in April 2009.
The hearing was told she had no history of cardiac problems. ...
via Teenage girl collapses and dies after first kiss - Telegraph.
"A shy British teenager collapsed and died from sudden adult death syndrome (SADS) just minutes after her first kiss, a coroner's investigation found."