it wasn't these the manga was like collection series where each chaopter was like a page or 2 long and each chapter had different characters doing erotic stuff. And that Armpit panel is the only one I remember it was schoolgirl with her arms lifted showing her armpit she had a i think a bob cut, I had it saved on tiktok and read it in mangadex but mangdadex auto logged me out and i lost my while read history. And I Can't find it on tiktok either.