If your mouth is dry, drink some water first to moisten it. That way you are still pleasing him but also taking a break. Well it is quite similar to head. If you do feel comfortable with this, the secret behind it is not tasting it but swallowing as soon as it gets in your mouth. Rub your fingers all over.
You can stop and use your hands to play with his testicles.
How To Give Head Like A Pro
Try going down at your own pace, there is no rush. If your mouth is dry, drink some water first to moisten it. Give light strokes on the tip followed by one firm stroke down the shaft. Sloppy head is the best head. This is totally your call ladies. Pay attention to how he reacts to things you do to him his body movements and moans.