Futari no Musuko ni Nerawarete Imasu

Keiichi is raising his twin nephews as sons, Ren and Takumi, his sister's sons who arecunder the false assumption that Keiichi is not related by blood. Ren is a promising future researcher and Takumi is a national swimmer. Keiichi's always wanted to give his two excellent sons whatever they wish for, but on their 20th birthday they unexpectedly started pestering him about...
"They want... my body?!"
Kamon Saeko draws the crazy love triangle of two boys that want to stay with Keiichi both as family and as lovers!
(Source: Fujoshi Bitches)