No, it definitely is not. Girth is the circumference, so the girth number is approximately 3 (pi) times the diameter number.
I interpreted communication here to mean direct verbal communication. You can sense what your partner is feeling during sex without them actually saying anything directly to you. So you could classify that as sort of an indirect (or secondary) means of communication. But you don't need direct verbal communication for good sex. Unless of course you're one that needs someone to talk dirty for you to get off And a side note: I don't consider moans, groans, etc. to be a form of direct verbal communication.
This maybe the case for some couples but to rely on moans, groans, and general body motions as an indicator that good or great sex is taking place is ambiguous. It's why girls/women faking orgasm in order to stroke a boys/men pride is a huge talking point in the topic of sex. Verbal communication is key, especially in new relationships as well, if one goes into a new relationship assuming things it can really damage first impression or cause ripple effects that'll case problems later down the road. So while I acknowledge your point, I still think my case still stands.
I'm not disagreeing with you. I'm simply saying that verbal communication is not a necessity for great sex. And you seem to be thinking in terms of long term relationships. You can have great sex with somebody just 1 time and never see them again. You don't have to have a deep relationship in order to have great sex.
Fair enough. But do you think great sex between strangers is common though in society? From my perspective I hear more of the case where the sex was bad to mediocre.
I believe it's a lot more common than you may think. I've had great sex with strangers, and I've had mediocre (and even bad sex) with girls I've had a great connection/relationship with. In fact, I'd say some of the better sex I've had has been with relative strangers.
I anm not sure that it is how much that is preffered but the quality of the sex that counts. You can have a monster hanging and if all you think about is yourself and not your partner then all you ever will be is a porn star. If you take care of your partner and make sure they are always sastified then they won't care what you have hanging and they will always be willing to jump into the bed. Give them Quality and not be hung up on quanity.