Thank you for your question. First and foremost the question that you have asked does not have any specific answer. There reasonbehind this is that all the human beings are different in their own self and each one of them has their own specific way of doing oral sex with their partner. There are different methods and ways adopted by different people in doing oral ex but out of all of them the most common way of doing it is by licking, kissing or sucking the partner’s genital parts. This process is extremely helpful in arousing both man and woman. They fell highly excited and they also lead to orgasm thereafter. In your situation, it will be best if you discuss it with your boyfriend itself. Both of you should decide as to how you two want to go about doing oral sex,whether it will be sucking, kissing or licking or any other method whatsoever. You should keep in mind, communication plays an important role in oral sex as it highly helps in getting intense pleasure during the course of sexual activity. You should also keep in mind that oral sex might as well lead to Sexually Transmitted Infections commonly known as sti. These infections can be dangerous and you should try avoiding them. In order to prevent them, it is necessary that you use condoms. Also, you can use dental dams which help in combating any kind of stiby acting as a barrier when there is a contact between the vagina and the mouth or anus and the mouth. Take Care.