Suck Me Off, Teacher: Another Helping

Mr. Takato, please go out with me. About to graduate high school, (straight) reserved Shioto tells his (gay) perverted teacher, Mr. Takato, that he has feelings for him. Shioto is quickly falling into the exciting world of same-sex relationships... Mr. Takato doubts Shioto's sincerity, but he's still pleased and asks Shioto on a date. What will become of their love...?! Mr. Takato is handsome, stylish, and popular with women... but in reality, he's a giant perv who crushes on guys! The much-awaited teacher has returned!!

(Source: MangaPlaza)