I think, if the quantity is consistent with peeing, i.e. half a litre or so, then that’s probably what you’re watching whether the performer is male or female.
From reading elsewhere I found that there is a trick used in porn where guys use a catheter to put fake cum up into their bladders and then, when it’s time to “cum”, piss it out, using the ability to start and stop the stream to simulate the spurts that would normally happen.
For a female performer, there probably isn’t the same expectation that it will be white in colour, so they may be able to get away with just drinking loads so their pee is clear rather than yellow and thus not obviously pee.
All the more reason never to judge yourself or anyone else by what you see in porn.
