A huge sigh echoes through the office as I brood over a problem too embarrassing to share. My coworker miru—an old classmate of both me and my girlfriend—asks what is wrong. Expecting her to be disgusted, I finally admit that my girlfriend never gives me oral. miru says she warned me not to date her and offers to suck me instead. Before I can tell whether I heard correctly, she strips off my pants at lightning speed and takes my cock deep into her throat. That instant, sloppy blowjob becomes the beginning of our secret cheating relationship.