[L.P.E.G. (Marneko)] Irekawari Soutaiseiriron | Theory of Relativity [gender.tf]

A sudden twist of fate leaves two schoolgirls grappling with a startling reality: their bodies have been swapped. As they navigate their new forms, the physical sensations of their unexpected anatomy become impossible to ignore. What starts as confusion turns into an intense exploration of their new bodies, as they discover the overwhelming pleasure of their swapped parts and wonder how long this strange new state will last.