Horegusuri wo Nonda Niichan ga Ore no Oshiri wo Neratteru!? / Unparalleled Love Potion: My Big Brother's Aiming for My Virginity!?
Rank: 3344th, it has 499 monthly / 50503 total views.
Authors: Eikichi
Genres: Japanese , Yaoi , Smut
Release status: Ongoing
Year of Release: 2016
MPCRS(?): G - Prohibited for persons under 18
"You’re my cute younger brother… I’ll make you feel even better." Because of a love potion, my brother became a stud devoted only to me. He attacks me whenever and wherever…!
I will only be uploading 1-15. It is complete at 33. 
Content warnings: It is unclear whether Fuyuji and Akikazu aren't blood related so don't read if you have issues with incest in fiction. 
In ch 13, the MC nearly has unwanted intercourse with someone other than the ML, you can skip this chapter and not miss anything.
~ Sui