The doujin is called Rump Pai. There's also a sequel for it. Find it on /rs/
Haaaan (light Moaning)PAI!puru puru
(Shaking sounds)for adultsYurishe said shes gaining weight~You calm down too Saya!
stop finding new --- (can't read, too distorted)fu----
fu---- (heavy breathing)what happened to Saya senpai?it's not like she can't wear her favorite clothes,or look at the mirror and see anything different...i just keep gaining for some reason.Aaa~~, why am i gaining so much weight~~GyaUwa, Tama-chan got madit has no effectGu-ha.. wha, what
You trying to tell me there is meat on my stomach?Breast----GyanTama , feels gooooodEh Eh Eh, (crying, sniffling sounds)W, wait calm down Tama-chan
Saya dosn't even have her armor onbody hit----*this book is about Kiri x Saya