Personally, I think she's just freaked out and overwhelmed by this new and foreign feeling. Heck, I remember my first orgasm and I almost stopped the girl mid-handjob, b/c it felt so strange. And if she would just hang in there and deal with this discomfort for a little bit longer, she'd have a huge O and not really have this problem going forward. Having said that, if I really am causing her discomfort and she's not close to having an orgasm, I don't want to push her to hang in there.
Sooooo..... what do you guys think based on your first-hand experience? Thanks!