I finally got around to start posting on AO3!
Physical Therapy, chapter 1/3
Words: 10,502
Rating: explicit. Very.
"Tony speaks directly in Steve's ear and his voice comes out lower and huskier than intended. He can hear Steve's breath become irregular, his own breath ghosting on Steve's skin, making him shudder and without his permission Tony's hands start kneading Steve's tense shoulders, his nails scraping lightly down Steve's neck.
http://archiveofourown.org/works/444485