Do they not like to see a cock they are blowing or is it they want to simply enjoy the sensation in their mouth?
Originally Posted by headhuntervirgo
Consider the movement similar to kissing. It's an oral activity.
Most people like to close their eyes when they kiss. Actually, it seems natural to close your eyes when kissing.
To open my eyes takes effort and I do that sometimes.
Oral sex is kissing your cock. For me, at least.
More of a natural reaction rather than one of "trying to ignore" someone (or not wishing to see the penis) as mentioned above.
Many sex workers do a combination of oral and touch, which while touching and teasing of course, the eyes are open.