if ur worried about rejection dont ask ' do u wanna go see a movie with me tonight?'
instead say something like ' im going to see ........ tonight, u seen that movie?' when she says no say ' well ur more than welcome to come along if u like'
no pressure on u, gentle pressure on her - she's got to give u a reason y she aint coming.
ps try asking her face to face not on fone, face to face its easier to sound natural
good luck sex god
jim