So basically im soon about to have sex for the first time with my girlfriend she has been talking how she wants to have sex for the first time and honestly im really nervous because i dont know what to do. How important is the foreplay? is it important to last long ?? could someone tell me what to do the first time and im worried that i wont make the first time feel good because i truely love her we are 15 and we have been together for 3 years and before that we were best friends for 2 years im asking here because i really wanna make the first time for here and me good.