This does not surprise me at all
What you are saying is that intercourse works just fine
- just as it is as it were, "designed" to, but your partner (who I am at this point presuming to be a young lady) simply does not know
how to handle an intact penis.
Therein lie the "trick". There is this "automatic" presumption that no skill is required to perform a "hand job" or "blow job" - it's dead easy and self-evident. Well of course, it is not
and the two worst cases are people who have either practiced on a circumcised penis which is far less sensitive, or just as bad, watched pornography and are so foolish as to believe they have learned
something from it.
Get real! If someone does something on a "hand job" or "blow job" which is painful, it is not
because there is anything "wrong" with your penis whatsoever, it is because they quite simply - haven't a clue!
They must needs learn
how to do it (as you yourself did), which means, unromantic as this may sound, that you need to teach
them in the obvious fashion - "Oh, that doesn't feel good, too hard/ rubbing without the foreskin over or without lube" and then "Ooh, that is nice
!" See my previous posts regarding teeth