I know this sounds weird from a guy, but i am a virgin. So me and my girlfriend were just joking around, i told my girlfriend that i want sex from her if i get all A's this year (i have an 4.0 gpa). She told me she was up for the challenge. She then whispered in my ear, if i make all A's this school year she will give me the best sex ever. I laughed because i thought it was joke, until she touched my private afterward. Now she has already bought the condoms and i am starting to worry now.
I am afraid that i will mess up, i will have no idea what i am doing. I am 17 years old, and so is she. She had sex before, but i haven't. I don't know what to do, i feel so nervous and under-pressure. What if i don't measure up to her standards, what if i am not big enough, or don't please her. This is what i keep thinking about, what should i do now.