TRYING TO READ THEM ALL. PLS HELP ME FIND THIS ONE

I'M LOOKING FOR THIS SPECIFIC YAOI MANGA. The main character starts having daydreams about his co-worker fucking him in all these scenarios. In the dreams he doesn't actually know that it's the coworker because all he sees is this outline of a shaded figure, but on his chest there's three dots in the shape of a triangle the coworker has three moles on his chest. The dreams happen whenever the main character is near the co-worker but they stop when the coworker touches him (▰˘◡˘▰). The main character also has a girlfriend but dumps him because she catches him using her vibrator. Because of all the dreams he got curious and wanted a taste of that dick (๑•ㅂ•)و✧. I think the first chapter or so is a scene of the main character trying to give a speech at a business meeting but the dreams make him distracted and sexually flustered so he can't continue the presentation. IF YOU HAVE ANY IDEA WHAT THIS MANGA IS OR ANY CLUES AT ALL. PLS TELL ME ;~; I'M DESPERATE.