Anal sex itself, I can take or leave.
What a do enjoy is sliding a finger into a lady's bum, however not with every girl. There are a couple of girls who I see fairly regularly and with whom I do this. It is a great turn on. Another who I see, I have never felt the inclination, despite the fact of how much it turns me on with the others girls. The ones I do it with are, without exception, spotlessly clean, even though one doesn't actually advertise it on her likes.