For as long as I've been getting erections I've noticed that I don't tend to get hard unless I'm either: 1. Watching or thinking about something really erotic. 2. Being physically stimulated somewhere (making out or rubbing my dick, nipples etc). I was having sex with my girlfriend and she mentioned, "You're the only guy who I've ever seen take his pants off and not be hard already." I have no trouble keeping an erection and ejaculating. Should I worry?
Not at all. I think one of the greatest sensations sexually is having a woman suck my dick hard. You don't seem to have any issues with keeping the erection and performing so I wouldn't worry. I'll bet she may even enjoy feeling it grow, mine does.
Your dick gets hard when you start to have sexual thoughts, and your brain sends nitrous oxide down your nerve endings to the corpus cavernosa sacks in the shaft of your penis, which causes the capillaries inside the sacks to fill with blood, resulting in a hard penis. Guys get hard at different rates and ways, so don't sweat it...
No - this is not something to worry about. I'm a little taken aback by your girlfriend's comment though. How many men has she seen with their pants down and why would she even say something like that to you?
I think she's had like 6 boyfriends that she's actually boned with. It's not a big deal to me that she mentioned it because we have good sex.