[Uchuusen Shoujigou (Shouji Nigou)] My Sister’s Friend [Coffedrug]

A nervous young man finds himself alone with his sister's voluptuous, short-haired friend, who teases him by lifting her sweater with a flirtatious grin. Tension escalates quickly as their charged encounter pushes past the point of no return, with the girl breathily calling out his sister's name while losing herself to overwhelming pleasure. The intensity only climbs from there—sweat-drenched, heavy-lidded expressions, trembling thighs, and desperate moans paint a picture of two inexperienced lovers completely consumed by each other.