One of the various tests Jill underwent while under the influence of P30 to see how susceptible she was to mind control. This test called for her to be anally fucked by a Uroboros test subject. To be violated in the naughtiest fashion by a bioweapon was considered the ultimate test of control over Ms. Valentine.
She rode the BOWs cock dry.
It was her final test; but she begged for more.
