Female twitches her tail during copulation, nervousness?

[RogueStar]

Video

Here's a video of my two normals copulating, I caught them in the act yesterday.

The female seems to twitch her tail a few times before letting the male do his thing, why? Is she just nervous as anyone would be (especially with a camera on them... ) or is this something that doesn't usually happen?

[starmom]

Awww, that's so cute! Ya know, my hubby says that I sometimes twitch my tail too...!

[RogueStar]

Hehe, what can I say, wuv is in the air...

[Rapture]

I was watching my pastel male court my het albino female the other day and noticed the same thing, only she wasn't just twitching her tail. From what I gathered, while he was courting her, he was always touching her body with his spurs, and I think that whenever she would jump, it would be a reaction to him "spurring" her. I'm guessing he did this all along her body until he got to her tail, where he would continue to spur her to get her into the right position.