Yes size matters. My wife says 7 inches is ideal. 7.5 at the most. Anything over that long hurts her. I have watched her get fucked by 3 or 4 guys that were about 8 inches, and could tell it was a bit painful. Girth however is a different story. Nothing I like better than to see her pussy wrapped tightly around a nice fat cock, as close to 2 inches in diameter as possible. I doubt that any of the many, many cocks that have entered her cunt, were that fat. But lets just say, (the fatter the better). For example....... Her sister used to tell her about how fat her husbands cock was. About 2 weeks after they divorced, my wife ends up on her back, legs in the air, and her ex-brother-in-law's fat cock buried up to his balls in her cunt. She just had to find out for herself. I didn't get to watch that first time, but I did at a later date. It was awesome...........