I was wondering if anyone knew any manga's where the uke had previous sexual experience(NOT rape). The uke does not need to be slutty or mature in anyway, I just want them to not be virgins when the story begins. It is okay if it is only implied or they seem experienced during sex even though it's not actually been explicitly stated that they are not virgins. (Though it should be pretty heavily implied)

Examples;
Lotus eater
I Want to Become Your Bird
Kichi no Oshigoto
Gouman na Junai
Ubawareru Koto Marugoto Zenbu

Ewon from Totally Captivated is openly gay and used to be the seme before. Pretty good story with nice art.
I think most story from Sadahiro Mika may fit your request too.

Do you want uke to just have had previous sexual experience (wether with men or women) or only with men?

Cafe Latte Rhapsody
Sentimental Garden Lover (first story)
Kedamono Nanbiki?
Kibishiku Aishite
Ikenai Otoko
Renai Shinan! (chapter four)
Aisanai Otoko
Aiso Tsukashi
Renai Nenrei
Koi to Wana
Honto Yajuu
Ano hi no Kimi wo Dakishimeta Nara
Binan no Dendou (third couple)

And that's all I'll post for now.

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