Janu, It can be hurtful, that is possible… but how much that no one can say. Which is why we say, choose your partner carefully, ensure that they know you, love and respct your body and are ready to pace their own excitement with yours. There is no hurry, get to know each other better, explore your body and the proceed to sex… when you are completely ready, relaxed and absolutely sure. http://lovematters.in/hi/news/first-time-sex-top-five-facts