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Wrap your arms around them. After you've kissed them a few times, use your hands to suggest you want to kiss deeper. You can wrap your arms around their waist and gently pull them toward your chest. In addition, you can place your arms around your their neck so there is no space in between you. This increases the chemistry between you. This will increase the passion. As things heat up, open your mouth slightly and touch your tongue to your partner's. Move your tongue up and down slowly and gradually to French kiss them. Use more and less force with your tongue and lips. Changing up the pressure of each kiss will captivate your partner. Do what feels right in the moment. When it comes to passionate kissing, it's best to change up the kisses based on what you and your partner are enjoying. Avoid being too forceful in your kiss. To determine how much force is appropriate, see what your partner responds well to when you vary the intensity of your kiss. Leave a few seconds in between some of your kisses to leave room for your partner to vary their kisses as well. While you are making out, caress your boyfriend or girlfriend. You can hold their face in your hands gently, touch the back of their neck, rub their shoulders or back, or place your hands on their thigh. This is a great way to communicate your attraction and affection to your partner.
Pull your partner closer. Vary the pressure and intensity of your kisses. Move your hands around your partner's body to build intensity.