Should i finger myself to my new boyfriend on webcam?

well im 14 years old and this boy asked me out 2 days ago and now hes asked me to finger myself on webcam for him just for him and he wants me to do it on monday what shall i do?? ive never fingered myself before, shoukd i be wary ino hes 15 and ive seen him on webcam b4 when he showed me what he looked like so ino hes not an old perv but...........................help