One Poster Had a good comment:
Are we talking index to thumb or middle finger to thumb? You can get middle finger to thumb around bigger objects.
My girlfriend once commented on a monster dick she had (not mine unfortunately). She said, “I couldn’t quite get my hand around it.”
We bought a dildo at 6.5 in the girth and as she was stroking it. That’s when she said that. And she is 5’10” and has very long gangly fingers.
She was speaking of index finger to thumb.
Shane Diesel is 7.5 and girls don’t go anywhere near to getting even the middle finger around it to the thumb.
However, I did just watch a pornhub clip of him today and the chick he fucked almost swallowed his entire 9 x 7.5 package.
Thus, for sucking it all depends on the girl. I’ve seen other clips of Shane where the girl just barely sucks on the head. The mouth question is so variable because of this.
The hand-around-the-cock question is however more reliable.
And yes, I think it is a big turn on for a girl to NOT be able to get her hand around the cock.
Hence, 6.5-7.
Of course, let’s not forget the squeeze factor and the softness of your dick as she wraps her hand around it.
Lots of variables here.