I first saw this on cinemassacre, then youtube put it in my suggestions.
Not much of a female TF, as much as a merger.
Male and female, two heads one body deal.
There is process, but not what you think.
TF starts around the 19 minute mark.
The rest are post male TFs
Surprisingly a large amount of known actors in this, from Keanu Reeves, Randy Quaid, Mr. T and a few others I can't be bothered to IMDB
https://youtu.be/UYXmCZxSeFI