Mygirl friend feels she is incapable of having a what can i do to bring her to one ?

every thing that i have tried fails i am by no means a amatueur. but even with my vast experience i fail she says its because of her extensive use of her vibrator i feel that if she cant do it to her self it can be done please help i really want to make this happen for her..... please help! p.s iam male