How can I make my woman harder then she ever has?

Im no slouch in the sack, I know how to stimulate the oris, im trying to find the g-pot, and im fairly endowed. I dont last as long as i'd like to, but im reading on tantric , and all I want is to make her scream with pleasure, and will do whatever it takes, so long as it is me giving her the pleasure. Ladies, its your time to shine, I'll take all tips.