NSFW♂Tasting My New Mommy's Milk

Miu is a preschool teacher who's strapped for cash. Recently, he started working nights at Club Hatch, where men find comfort through baby roleplay. One night, Miu gets assigned to Hiroshi Yuuki, a first-timer who seems unsociable and disinterested. But when Miu switches to "mommy" mode, little Hiro finds himself oddly aroused by Miu's nipples, and asks his Mommy to breastfeed him for his mealtime! Tonight, our mommy's about to learn that sometimes, to satisfy your baby, you have to get a little naughty!

(Source: MangaPlaza)

Note: Includes four extra chapters.