i was just noticing last night with this new chick i am messing with that its always different when and how i get hard. some girls the second we start making out, it goes right up while others need to basically start dry humping me and going all out. i guess the more comfortable i am with certain girls, the faster it goes up. so whats up with you guys? do you need oral stimuli sometimes or the moment she gets on top of you its on?