Do a Google Image search for tongue piercings.
Some do. It depends how much you play with them and how big your piercings are. The ears do if you wear heavy, long or thick earrings. You can stretch those holes easily. I've seen the tongue hole stretch too, although it can close pretty fast.
Depends on how long you have them, and what kind they are. Piercings in the cartilage, lip and ear lobe rarely close completely, they scar while new skin might grow over the hole, the cartilage remains shattered. Tongue piercings heal quickly, because the tongue is a muscle. Dermal piercings also heal better than cartilage, but can leave a scar.
The venom is two tongue piercings.
If they're in the middle of your tongue, they're just double center tongue piercings. If they're side by side, on either side of your tongue, they're venom tongue piercings.
No
yes
Tongue and genital piercings can benefit sex whilst some piercings are considered sexy and erotic.
It is typically safe to have two piercings in the tongue at once. Any more than this can increase the risk of complications such as excessive swelling, infection, or damage to the nerves and blood vessels in the tongue.
no
tongue piercing
Everyone has veins in their tongue. You'll have to check with your piercer to see if a tongue piercing is possible. Center tongue piercings are usually an option for a majority of people but venoms or off-center piercings can be tricky.