That’s too bad, Ingid. Sex can be the greatest free pleasure ever. Perhaps you are simply A sexual. Nothing to be ashamed of for sure. It is what it is.
On the other hand you might be inflicted with was I call the Virgin Mary complex. This comes from growing up in a religious environment where the message, either overtly or covertly, was that nice girls are’t supposed to enjoy sex. Mostly this happens with women who grew up before the 1970s or else were raised in a strict fundamentalist religious household.