Sometimes describing the simplest things can become quite an undertaking. Especially when you have repeated that thing in your own work so many times, that it has become second nature. Couple that with trying to explain it through images to someone who is an extremely talented artist in their own right? Well, it can be a bit daunting.
So this if for you Becky. Hopefully it is more helpful than me saying “Like, just draw a vaginal seashell or something.”