hi all. i've been seeing a girl for about 2 months now and the sex is great, but theres one thing i was hoping to improve. i can bring her to orgasm in missionary and with her on top (if i rub her clit with my fingers during penetration) but from behind i have not accomplished this yet. i love doggy style and it would be good to make her cum from this as well. if it makes any difference my dick is 7x6"