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Thank you for your reply but I'm positive that it's not that one.
I remember the uke in the one that I'm thinking about was masturbating at the very beginning of the chapter and the actress had really big boobs (I know, it's a super weird thing to remember).
There was this glasses wearing side character that said big boobs could "meld a broken heart"
Gosh, I can remember it so well but I seriously can't remember the name. ヽ(`Д´)ノ
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http://www.mangago.zone/read-manga/toshigoro_no_otokonoko_to_are/
I'm really sure that it is
I can't, for the life of me, find this manga.
Can anyone tell me this manga (it's been a long time since I last read it):
This guy keeps getting dumped by his girlfriends and I think it's because of his ass fetish. But I'm not sure about that last part.
Anyway, I think the guy the gets dumped walks in on his friend masterbating to porn.
He ends up becoming fascinated with his friends ass.
I think at some point they end up watching porn together or something?
Also, it's not Suki Dakara Itte Hoshikunai.
Any help would be greatly appreciated. ლ(´ڡ`ლ)