So this weekend Me and the GF were going to have sex (My first time having sex, not hers). We get in bed and fool around for an hour before we decide its time to have sex, but for some fucking reason I cant get a hard-on. This happened again the next night. We tried everything short of her giving me head, and it still didnt work. Now I thought It was me being nervous, but its the day after and I still cant get it up...wtf?