Accelerando: Datenshi-tachi no Sasayaki
Japanese title: アッチェレランド ～堕天使たちの囁き～
Type: OVA
Episodes: 4
Source: Manga
Genres: Hentai
Studios: Flavors Soft, Maboroshi Koubou
Producers: Pink Pineapple
Duration: 28 min per ep
Rating: Rx - Hentai

Waitress Tamaki has sex with her playmate Kurono at the café she works for. Ignorant of their relationship, their common friend, Ohashi, visits the café as usual to see Tamaki whom he secretly loves. However, Kurono notices Ohashi's feelings. In order to incite him into confessing his feelings to her, Kurono molests Tamaki and makes her wait on him as she is. As she was sexually excited, she gives off a female's scent, which, in turn, excites Ohashi. Meanwhile, Tomoe, a friend of Kurono's appears... Will Ohashi be able to confess his love to Tamaki?

(Source: AnimeNfo)