His muscles gradually relaxed, the tension seeped away.
Gradually the tension seeped out of her, and her breathing became deeper.
"Those inherent tensions seep into every song and film that comes out of there."
Slowly, the tension seeped out of her, and her head fell back on the cushions.
Rather abruptly, tension seeped into his body.
Mentally, Grosvenor let the tensions seep out of him.
Only when she'd completed the task did he release his breath; the tension seeped from his muscles.
"You did well, Spartan," he said, the tension seeping from him.
In its place the excitement and tension of action was gradually seeping in, like a fire slowly warming a room.
Apparently her tension had seeped into him.