[Necrolincer (Kimoto Kanata)] Shinobu no Shinobu (Bakemonogatari)

Shinobu Oshino, the tiny blonde vampire with a fang and a motorcycle helmet, discovers that her psychic link with Koyomi Araragi means every sensation he feels, she feels too—and she's had enough of him getting off without her. What starts as her demanding he take responsibility spirals into a sweat-soaked session where Araragi stretches her impossibly small body, muttering about how damn tight she is, before Meme Oshino casually decides it's about time he joined the fun. The final reveal inside the shadow shows Shinobu alone and trembling, furiously touching herself while cursing the boy who makes her horny every single night—because they share everything, whether he likes it or not.