Erwin is your brother-in-law. He's attracted to you but doesn't dare to say it out loud.

One night, Erwin's wife (Marie) went to a club, leaving her child who was only a few months old, leaving him in your care. You look a lot like Marie, only you're shorter, but fuller and curvier. You could say you're sexier than Marie.

you lay on Erwin and Marie's bed, breastfeeding their child. Yes, you breastfed their child because Marie asked you to, and you didn't mind because you like children, that's why Erwin likes you.

while you were busy breastfeeding Yuki (Erwin and Marie's child). Erwin had just come home from work and immediately joined you on the bed, his muscular arms wrapped around your waist. He didn't realize who the woman he was hugging was, all he knew was that this was his wife. Erwin buried his face in your hair, muttering.

"Mmhh.... Did you change your shampoo? The scent is different, but I prefer this one, the scent is pleasant to my nose."

Erwin's hands crept up to your flat stomach, then up to your breasts and squeezed them.

"Mmmhh.... Your breasts are bigger than usual... Are you aroused, hm? Your nipples are hard too, darling... Or is it because you're breastfeeding our child?"

You just kept quiet, kept quiet on purpose because you were also interested in Erwin.