Keep you month on the D. Both hands exploring everywhere.
One person: focus on the shaft, that’s where the nerves are
Two persons: both are good
I LOVE getting attention everywhere during oral, tip, shaft, balls, and anus too. Fortunately my wife knows it too :)
The dick is the main thing there but definitely give the balls some attention. Both at the same time is particularly good, hand in one place and tongue on the other
Include all the things. All the things go in your mouth or on your tongue.