Not sure...Only done it with my bf...hes 7 inches and thick...he takes his time so its great...hurts a little but I like it
jumbo jet thickness, not more than 6 inches long tho. my last g/f that did it to me had a 8 long inch strap on, which was a little long if she got too energetic.
I prefer length myself. My boyfriend is about 8 inches and when he gets his entire cock inside of my ass it feels nice! Thickness doesnt matter as long as its not really skinny and not really thick, but I've only had anal with 3 guys total before and neither of them were really thick or skinny so I guess I could be wrong
I started small and keep getting bigger. Love the feeling of being stretched out, and also the length to hit the prostate!
Thick and long is great! My girlfriend has an 8" long strap-on which is the thickness of a coke can. She loves riding me with that on!
Personally I prefer to take length rather than girth as I already have a very tight rectum, which can make penetration tricky at the best of times. However, a thin 'pencil dick' is ideal. It goes in easier & is better for nice easy strokes on the subsequent thrusting / drawing. Girth may well be preferable to length for Vaginal stimulation (in which regards, I am what might be considered blessed), but for Anal it's definitely a curse.
For me.. generally thicker feels better.. eventually, but can often take longer to get to the point where I can take it comfortably.. Longer and thinner is more.. immediately accessible. Both get the job done however though