I don't know why your parents thought you needed to be watched while they went out for the evening. You are old enough and more than capable of looking after yourself. Oh well, I enjoy spending time with you and had no plans. You know you've grown up to be a very handsome young man. I bet the girls chase after you. No? You've not had any fun with them? That's okay, you will in time, you won't always be so shy. Do you have any questions about girls, dating, sex? I'll be more than happy to answer them for you. Maybe it would be best if I just showed you how things work.