The Case of Sperm

The Case of Sperm
The case of Sperm was an artifact that contained a sample of Team NWF's Leon S. Kennedy's man juices. It was a valuable item for both of the teams, especially for Team FMS since it would allow for Claire Redfield to proceed with the idealized Redfield-Kennedy bloodline.

At some point, the Bogdanoffs got possession of the briefcase, and used the semen inside to make The Sons of Sperdo: Donte and Vorgil, who, now unbogged, claim that Leon is their father.

The actual briefcase contents might not actually be what what is advertised, as it is rumoured (though not confirmed) that Wesker replaced the semen with his own during the period that Mr. X was in possession of the case.

Season 3
The Briefcase was spotted in a room where Doomguy and Zoomer was fighting at Backstage seemingly unattended. It is unknown at this time whether the contents of the briefcase still remain within