My junior colleague, Sumire, knows I'm married, but she still tries to slyly and cutely pursue me. At first, I brushed her off, but at a drinking party, I made an opening by saying, "Well, just a kiss would be fine..." She secretly slipped me an erection drug, and then, unable to resist her incredibly slobbery, lovey-dovey kiss that instantly shattered my self-control, we ended up kissing and having sex all night long!! It was a mutual spit-kissing sex session unlike anything I've ever done with my wife, with her mouth going up and down...