F4 to F6

The F4 is a "Fantastic frozen fecal fuck". Where a condom is shit into, placed in a freezer, till hard. Then brought out and used on your partner with the condom. Becomes an F6 without the condom Fantastic frozen fecal fuck free form

I gave my girlfriend an F4 after burrito night, but the condom broke and it went from an F4 to F6. Which made a crappy mess