Marcelline and Bubblegum (by Kawacy) - Sopuli
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Artist: Kawacy | pixiv [https://www.pixiv.net/member_illust.php?mode=medium&illust_id=96510861] | deviantart [https://www.deviantart.com/kawacy/art/Bubbline-908043146] | danbooru [https://danbooru.donmai.us/post/show/5153830]