I'd crossed paths with a couple of guys with rather large heads on their cocks before I began enjoying anal sex with men. Their larger heads made it difficult for me to provide the deep blowjobs I normally provide. One guy in particular had such a large head on his cock that I was struggling to get the entire head of his cock in my mouth. His cock was so thick, and the head was huge. He said he enjoyed what I provided, and I did get him off but looking back had I been into anal sex I'm not sure I would have wanted him up my ass. I'm sure a woman would enjoy it in her vagina but that thick thing IMO would have inflicted more pain than pleasure entering your ass.
One cock I sucked once, the head was very wide and full and meaty. I could barely get it in my mouth let alone do a reasonable job sucking it. The shaft was normal thickness and some 7 inches. It looked like Thor's hammer. He got a girlfriend and he sure kept him busy. She loved his big cock head. He gave up bi play. Enough pussy to keep him busy. It's best to be meaty but not a mouthful.
Big heads are the best. Not only when you take it vaginally, but taking it in the ass, especially if the shaft is long, is amazing.
You are so right. I love it when he pops his mushroom head in and out of my ass for a while before working his way in deeper.
There's a difference between a nice stretch when it first goes in and then the long, thick slide filling you up if the shaft is a good length.