Ochigamisama no Tsugai-sama

Yukari is a big guy with a motherly disposition who works in a restaurant at the university. He takes notice of Sasara, who is mysterious yet prickly. As Yukari walks home, his mind on Sasara, he is suddenly kidnapped by a large wolf, who carries him to a small shrine where a "fallen deity" is enshrined. As he is taken into the shrine, Yukari finds out that the wolf is actually Sasara. Sasara pushes him down, saying they're about to mate, and begins to pull off his clothes. Yukari finds himself overcome by desire and feels an overwhelming urge to claim Sasara...

(Source: Renta!)