Milky Complex

Overview

"My big brother is so sexy, I can't stand it." A high-tension romantic comedy about two unrelated brothers living under the same roof. "My head and my dick are full of my big brother." Peko, a tough guy, worries about his small and immature penis. When he was feeling down after his girlfriend dumped him because of his tiny penis, his handsome older brother came to talk to him. As he was touched, rubbed, and stripped, Peko's penis became healthy. What's more, he somehow started feeling aroused by his older brother...!? (Source: Fusion Product, translated) Note: Includes one extra chapter and the one-shot "Manatsu no Uta (真夏の詩)".

Source: AniList