Snake X Cow

“I love it, Imoo...!” An empty dorm room during summer vacation. Eun-woo, a dairy cow, was filled with pleasure by thinking of the professor. “I like it..., Professor.” Eunwoo wanted to milk while looking into Imoo's eyes just once. 'That can't happen because you're married.' ...I thought that was definitely the case. “I’m a prisoner too.” The tongue of the Imoo that appeared before my eyes was split into two. “Ship, snake...?” “Uh. Water snake.” Kang Imoo smiled brightly and unbuckled Eunwoo's pants. “Are you in heat?” The unbelievable words kept coming. Eunwoo nodded, lost in thought. “I’m in the mating season.” "Yes?" “So get ready to get pregnant.” Source: MU Includes 1 extra volume.