We’ve reblogged this illustration from Boyfriend and ExBoyfriend BDSM Gallery. He’s got great taste in NSFW pics too.
This is a regular series of illustrated guides. You can find the others here.
The pharyngeal reflex or gag reflex (also known as a laryngeal spasm) is a reflex contraction of the back of the throat,[1] evoked by touching the roof of the mouth, the back of the tongue, the area around the tonsils, the uvula, and the back of the throat. It, along with other aero digestive reflexes such as reflexive pharyngeal swallowing, prevents something from entering the throat except as part of normal swallowing and helps prevent choking.
Wikipedia
FURTHER READING
• Spicy Gear – How to (Safely) Suppress the Gag Reflex
• WikiHow – How to Suppress the Gag Reflex
• A Kinkster’s Guide – Submissive Training: How to Give Good Head
• Literotica – How to Get Rid of Your Gag Reflex: Deepthroating 101
• Bad Girl’s Bible – 11 Secret Techniques to Deepthroating Your Man Like a Pro