Chou yo Hana yo (WATANABE Asia)
Other names: 蝶よ花よ (わたなべあじあ), Of Butterflies and Flowers
Author: Watanabe Asia
Artis: Watanabe Asia
From Blissful Sin: Lately Tamao has been finding the pink nipples of his cute and slutty papa, Kouzuki, irresistible. On his 20th birthday, his papa tells him that they aren't really father and son. Well, of course they DO IT, don't they?