A woman's sexual energy manifests in ways unimaginable. As long as both of you were enjoying it I would say it's fine. Just remember during the throes of orgasmic delights it is very easy for us to forget how we are sounding. In fact if you hypothetically recorded the session and showed to her afterwards, chances are she would be surprised at herself. So it's all very normal. Just make sure you communicate with each other clearly about the risks of top cow girl positions. There are chances of snap hurting if we get too excited, hence, creating and testing safe leverage distances before hand always helps. Wishing you and your partner more broader and happier horizons.