There are no automatics for me; depends on chemistry and execution. If done the way I like I am sure to cum fast with FF and GC if I feel a tight squeeze and I am enjoying the visual. The scent of some women can be a huge turn-on and speed things up. A woman who is oozing pheromones and gets wet for real with foreplay often makes me cum fast a bunch of different ways. My once regular who is now retired always smelled great and has the sweetest pussy juice, and I sometimes cummed before commencing intercourse and bbbj; even after turning 50! Thankfully she would let me recharge and have another try.