Artist: Yuzuki N Dash (柚木N')
Title: Yurei Buin (ユーレイ部員)
Source: Shisyunky no Arekore (シシュンキのアレコレ)
Contains: Spirits, Possession/TF, BE, & Sex
This manga was recently posted over at masterbloodfer's forum by the user "moo". From what I can gather, a busty female character has died and is left as a spirit. She then posses other females in order to have sex with her lover. When she posses other females, they take on her characteristics, a large bust. Here are a few images, along with the two scenes.
Complete Scene:
Badongo link
Compressed Size: 19mbs (zip)
Image Format: JPG