Responses
nvm, found it!
It's probably either
http://www.mangago.me/read-manga/akanai_tobira/
Or
http://www.mangago.me/read-manga/pheromone_boy/
yeah, it was akanai tobira
The plot was about this uke who ends up working for this author/mangaka or something who was his crush in school before. The seme's straight & wasn't interested in the uke, but the uke releases pheremones that attract people. At some point the seme's friend is attracted by the uke, the seme finds out and end up doing it with the uke after. The uke's also really goofy & excited so when he's doing it with the seme he's thinking about how lucky he is