At first I blamed coffee (I thought caffeine had a chemical which blocked "editing" skills). But then I realized it happens to me from time to time regardless of what I drink or in which mood I am.
For example, I've been stuck with the following for an hour:
Takeshi crawled back to bed after finishing his cigarette. They had sex again. The quiet and comfortable sex they always had. No foreplay, nor creative positions; all they did was to wrap their arms around each other, and move at the rhythm of their breathing. This lack of fervor didn't bother Eri, though. [Should add something here. But not sure what!] not all couples needed to be crazy in the bedroom. [Same here!] the kind she had with Takeshi was just fine. Plus, it made her feel protected, at ease. A little ritual that reminded her she had a cozy home to come back to.
Is this normal? Are there any tips or techniques to deal with this problem? (I welcome both technical and psychological ones).