He was stupid for answering the phone. It more than likely killed the momen for her. She should have kiked him off and got dressed and curt him off for ever. When you are having sex you turn your phone off so there is no interuptions. DA..
If you have to ask questions like than on her, you are not ready for sex and do not let your boyfriend pressure you in it. Your body if not fully mautred yet and ready for sex. I would suggest that you wait at least 2 more years before even considering having sex. Good Luck.
Sit him down and tell him when he needs to be mastibated that you will be more tha happy to take care of him. That you do not care what time of day or night that might be. Then see what excuse he come up with. Personaly I think he is lying to you. He is getting it some where else and just using...