i have the same problem. for me i think it has to do with that it just isnt as good, and makes it a motherfucker for me to finish. this has a lot to do with the fact that she like to rock forward and back on me which really doesn't do much, i think she needs to move up and down, but that really isn't sustainable. it's not a problem with me being on my back, as when i'm on my back, it's cuz i'm getting head
