A pacific cruise ship sinks with only 3 survivors, Dave, Darren and Daisy.

They swim to a small island and live there for a few years doing what comes naturally.Daisy feels so badly about sleeping with David and Darren that she kills herself.

Sad for David and Darren but they get over it and again nature takes its course.

After a couple more years the lads start feeling guilty about what they're doing..............

so they bury her

the term is necrophiliac... have read it before.