No, even for me, and I actually do it a lot more than vaginal, anything forced there in that very sensitive area is only going to hurt and ruin it. My butt is small and I can take even a very large guy, but warm up really helps. I don't always need it in order to get off but, like the guy I'm with now, I need about 5 minutes with just the head in to let my muscles get used to it, then can go about half way if he takes his time pumping it in slowly. After 10 minutes or so I can take all of him, and for me that is required since I need him to vary his intensity between slow and easy, and then really hard and fast for me to cum.
We've done it enough now that I know my rear accepts more of him sooner, and too much too soon can overcome my senses in a thrilling way. But never forced.