It's absolutely okay to. Just slide your tongue gently and touch their lip with your tongue, so that they slightly part them, so you can slide your tongue all the way in.
07/8French kiss
When a man kisses you with their tongue, it means that they are head over heels for you. There is nothing that excites them anymore except for you. A French kiss is a sign of attraction and desire and if he kisses you with so much passion, he sure wants you.
That kiss which is seemingly just a blissful moment of intimacy, may actually lead you towards the road of infection. Researchers from the Netherlands in a 2014 study estimated that a French kiss lasting just ten seconds can facilitate the transfer of up to 80 million bacteria.
An American kiss, just like a French kiss, involves deep kissing but without the use of tongue.
Lesson #7: No Need to Turn Your Head or Use Tongue
You are actually releasing a little when you turn your head during a kiss. You kiss, stop a little, turn your head and continuing kissing. That's for another lesson though. You also don't need to use your tongue.
Whilst bad breath, a darting tongue and a wet sloppy kiss are rated as the biggest kissing turn-offs according to science, it might also be your smell, taste or even your pheromones that's causing the problem. Being a bad kisser can be a deal breaker, but kissing is more complicated than most people think.
French kiss
It is the most passionate and erotic kiss. You need to use your tongue for this kiss. It takes time to practice and be perfect in the French kiss, so start practicing!
If you receive the green light to deepen the kiss, part your lips and gently use your tongue to stimulate your partner's lips and tongue. Run your tongue along their lips or slide your tongue along theirs. Take it slowly and gently, allowing the intensity to build as you match your partner's energy and movements.
Kiss someone when you feel ready, regardless of how old you are. Around ages 12-15, people often start having their first kiss. Don't feel pressured by other people your age kissing people, and don't rush into kissing someone if you are apprehensive.
A 2015 research report which Volsche co-authored found that the romantic-sexual kiss—aka kissing with tongue—is only present in 46 percent of cultures. Before this study, it was speculated that around 90 percent of cultures engaged in this kind of kissing.
US scientists have found that modern man uses smooch to pick up traces of oestrogen in a woman's saliva and thus gauge her fertility. Anthropologist Helen Fisher of Rutgers University says that such behaviour may explain why men like wet kisses with more “tongue action”.
A butterfly kiss is an affectionate gesture made by fluttering the eyelashes against someone's skin or eyelashes.
He smiles during or after.
Smiling while smooching might be an indication he's not only happy to be kissing you right now, but that he's been wanting to kiss you for some time, and is overcome with elation and a sense of victory.
French kiss is an intense and passionate kiss on the lips. This also includes a lot of tongue-play and is shared by two partners who are deeply attracted or infatuated with each other. This kiss is truly one of a kind, as it leaves both quite breathless and wanting for more.
Kissing with tongue (also known as French kissing) can be really pleasurable for some people, but you should make sure to introduce your tongue into your partner's mouth slowly and sensually—unless you've both verbalized that you're into more intense tongue action right off the bat.
A good kisser knows how to get in tune with what the other person is doing and stay in sync to their movements and vibe. So if you feel like you're well-suited to your kissing partner's style, then you're all set.
Summary. Kissing can transmit many germs, including those that cause cold sores, glandular fever and tooth decay. Saliva can transmit various diseases, which means that kissing is a small but significant health risk. It's not all doom and gloom.
Most "smooth" lines that people come up with after kisses are laughably bad -- a smile and a simple "I liked that," is often more than enough. Don't overthink things! Just keep being yourself. If you feel confident and have something to say, say it!
You get all giddy.
A rush of dopamine, oxytocin, and serotonin hits your system the moment your lips lock. With this positive cocktail and a heart-fluttering kiss, you'll feel like you're on cloud nine! Lips are one of your body's most sensually sensitive areas.