I'll give the author/artist some leeway, since those anatomy with the arms looks kinda all wonky for few pages there. It matches the quite wacky situation in the chapter anyways.
Very similar premise to MobuSeka, I'm expecting more "slow life/slice of life" in this one compared to MobuSeka since that really delves into the Otome game's story.
I'm not a fan of fat bastards, but the premise is wack and fast paced it got me laughing with a boner at the start.
The energy portrayed with the intercourse part is top-notch though and the scene felt a bit short with the imouto at the end.