Some teens have no problem doing it. Talking creates intimacy and trust between two people. Without communication, sex is purely physical.
Deep discussions are also key to avoiding pregnancy and sexually transmitted diseases.
You never know, you both may be sweating the same things. Another biggie is the relationship factor. Talking about each other's sexual past is important too. Your honey could have gotten a disease from a previous partner and not know it. Not only will knowing about your partner's sexual past protect you against diseases, it could bring you closer.