If you do anal how often?

Vicca • Mommy to a 5yo Beauty queen, and 3 angel babies. Step mommy to 1 and expecting our first together March 2017
I'm curious. Me and my SO are exploring that avenue and I'm curious as to how often other ladies are doing anal play. So far we have went as far as him putting it in once. I'm not really sure how to feel about it yet.