monnom's manga / #Pesotarou(2)

Naru Tsurusaki and his childhood friend/room-mate Kei Miyazawa are inseparable. Kei gives into every single one of Naru's whims, and Naru is more than happy with this kind of friendship...until one day, Kei is confessed to by another classmate and agrees to date them?!

Sakuya Akatsuki is not your average hypersensitive uke. After try touching himself once and feeling no arousal, he considered being frigid. His roommate Mitsuki Toujou promptly offers to help him achieve his goal: anal orgasm. What switch should be pushed so that it happens?