[Oishii Udon (Ocza)] Shamikan no Hon (Machikado Mazoku) [Full Color] [/u/ Scanlations]

Shamiko and Mikan duck into a daytime love hotel for a secret tryst, where Mikan reveals that the magical ribbon sprouting from her body can stretch and reshape at will—morphing into a toy that leaves the curvy demon girl gasping on all fours, tail curling as she cries out how good it feels. Between shared climaxes and teasing banter about being 'masturbation buddies,' the two friends push each other over the edge again and again. The afterglow brings an unexpected wrinkle when Momo's keen nose catches the scent of their play, and Mikan plants the idea of inviting her along for a threesome next time.