I've sucked small. I've sucked 5-6 inches and could deepthroat them without a singe issue, without using hands. And I'm not a pro. And I've only given head a few times in my life. And I've sucked a few dicks that are bigger than 6, 7, 8 inches. And I struggled a lot. So it always irks me when I see girls who can't fucking suck a dick smaller than fucking thumb