Naw it isn't just you... pretty common to need some clitoral stimulation to get the job done... I'm not shy, I have no particular problem just reaching on down and lending myself a hand. haha. Drrtyhot. In fact my man gets all sorts of hot and bothered watching and it's a great way to reach that point where you and your partner can climax simultaneously- that rocks!
The only thing that sucks is if the dude rocks a beer gut. Makes things tricky. You've practically got to hold Da Belly aside with the other hand, or have him lean back pretty upright... and I like big dudes...