I'm 19, and first you should know, that I'm bisexual, and have had relationships with both girls and guys but only have gotten "intimate" with girls. When I masterbate, I can get off no problem except when only using, (I feel a little shy saying this so bare with me) a toy/dildo. It just doesn't work. Does that mean I won't be able to get off if I ever do decide to get intimate with a guy, or am I doing something wrong maybe?