Tenioha! feat.Mami - Mazo no Yorokobi Kaihou Shimasho?

The protagonist, who has a particular inclination to be tormented by sluts, ends up on a date with Himekawa Mami, a talented senior at his company who treats him favourably by following up on his work. A shocking fact was discovered there. Her true identity is a super-carnivorous, sadistic girl who has a desire to use younger men as sexual pets!? The protagonist, who is taken to a hotel and given an unilaterally sweet masochistic sensation, accepts her offer. All he could do was nod...
(Source: Puchipara Bunko, translated)
Note: includes 2 extra chapters added in the special enlarged edition