Length is irrelevant. Girth is what determines if you are comfortable. Anything over 5.5" and it's nearly impossible to get it into your mouth and your jaw hurts for 3 days..
I've yet to suck my first cock (i'm 65) but get so horny thinking about it. Love women, but have huge desire to suck on a thick cock and feel a load in the back of my throat. To kneel and look up and put cock in my mouth would be, whew.
I am not a woman and do not think that my opinion matters. If I were a woman, I would suggest that it depends. Other factors such at the appearance of the phallus, the hygiene of the male partner, and whether the male package turns you on to have sex, should be the deciding factor. Sexual athletes are probably more inclined to size.
Not into sucking a guy but if I could reach mine I would do it regularly. Every time I masturbate I look at it and wish I could reach. 3”/7.5cm more would make me happy for that purpose but would it be too much for women to have sex with? That would be an important factor
Reminds me of a joke. Two cowboys are sitting on a porch with a dog. The dog is cleaning himself. One Cowboy says " I wish I could do that." The other Cowboy says "That dog will bite you."
Two cowboys are sitting on a porch with a dog. The dog is cleaning himself. One Cowboy says " I wish I could do that." The other Cowboy says "Give him a bone and he'll let you."
When I'm with a guy, I have a preference that he be a bit bigger than me, both overall physically and in the cock department (I'm 5'10", 190 lbs, 7"c and fairly thick). I like being made to feel "small" and I'm sexually submissive with men. I have deepthroated a THICK 9" BBC before without no issues. .
I personally have not measured guys and don’t have the carpentry skills to look at a penis and say that’s 6 inches. The best I can answer is to say that if he’s too big it’s difficult to give and finish a proper blow job