Oh my. You used the word 'girl' to describe a female rider. In modern PC talk, that intimates that she is a child and is a mortal insult. Unless, of course, she was under the age of twelve or so. Over that age females must be referred to as women. Well, 'young woman' might be acceptable. Unless she's on a school athletic team. Then she's a woman. Definetly. Just imagine if you refer to yourself and two or three males you ride with as 'the boys'. Um, no, that isn't an insult because you are a member of that group. Well, how about if someone else referred to your group as 'the boys'? Wouldn't your feelings be horribly hurt? Wouldn't they now? Really? I know mine would. Oh dear, oh dear, oh dear. To imagine that non-PC language could appear on this site. What IS the world coming to?
Disclaimer: the above was supposed to be humorous and not a criticism of any person, group or philosophy. All characters are fictional and resemblance to any person living or dead is unintended and accidental. The author is exceedingly careful to use PC language at all times and in all places, being sure to refer to non-human species in homes as 'companion beings' ('companion animals' is not appropriate as it indicates cats and dogs are less than human) and all persons over the age of 12 as 'women' or 'men'. Many more examples are available upon request.