I'm a bit hesitant to try to distribute anything under an identity that can be traced to a site for zoophiles, but I can explain how I made those changes since they are relatively easy. In your files for the rjw mod at: Mods/rjw-master/1.5/Defs/RulePackDefs/
You will see folders that contain the verbose logging rules for what gets put into the log for a given interaction (the Def for the interaction itself has the brief description, but that's not super important so don't worry about it)
The Bestiality folder has the logging rules for all the Bestiality interactions of course. If you look in one of the files there, you'll see entries that look like this:
<RulePackDef>
<defName>Bestiality_VaginalRP</defName>
<rulePack>
<rulesStrings>
<li>sent-> [RECIPIENT_nameDef] was mounted by [INITIATOR_nameDef].</li>
<li>sent-> [INITIATOR_nameDef] was teased into mounting by [RECIPIENT_nameDef].</li>
</rulesStrings>
</rulePack>
</RulePackDef>
Which, in the actual game, will print out something like: "Marie was mounted by Donkey 1." OR "Donkey 1 was teased into mounting by Marie."
There are two lines that describe what might be logged, and each entry is given equal weight as to which one might be logged.
Additionally there are a lot of useful special variables like RECIPIENT_nameDef you can use. Here are a few useful ones:
RECIPIENT_pronoun/INITIATOR_pronoun = he/she/they as appropriate
RECIPIENT_objective/INITIATOR_objective = him/her/them as appropriate
RECIPIENT_possessive/INITIATOR_possessive = his/her/their as appropriate
