My Summer With Mom Sis -

Mia groaned. Jess was fun as a sister — late-night snacks, silly dances, secrets. But a mom ? Jess didn’t even know how to fold a fitted sheet.

“I’m not just your sister this summer,” Jess announced on Day One. “Call me Mom Sis. That means I cook, clean, worry, and boss you around — but I’ll also stay up with you during thunderstorms.” My Summer with Mom Sis

Jess teared up. “See? You’re pretty useful yourself.” Mia groaned

Every summer, ten-year-old Mia stayed with her grandmother in the countryside. But this summer was different: her older sister, Jess (twenty-two and fresh out of college), was in charge while their mom worked abroad. Jess didn’t even know how to fold a fitted sheet

When Mom finally video-called from her job overseas, she asked, “How was your summer with Mom Sis?”