Hello . I am A guy I want to help my girlfriend reach an orgasm without breaking her hymen any technique?
Make sure she is well lubricated. Massage her clitoris (what size is it?) with your fingers and/or tongue. Also pay attention to her labia, and the area between the inner and outer labia.
Hope this helps as a start.
An electric toothbrush is great on the clit.
thought i was the only one that did this