akiyama kun
Blood bank (fun smut starts @ chapter 51/52/53..I think)
Hidoku Shinaide
Fuck Studio(by Penguin Frontier)(be warned it has rape/gangbang fantasy but the last fuk was by the main seme lol)
http://www.mangago.me/read-manga/iresasete_kudasai/
Try this if you haven't read it yet
http://www.mangago.me/read-manga/ore_x_makoto_free_dj/
http://www.mangago.me/read-manga/junketsu_drop/
http://www.mangago.me/read-manga/jackass_sawatte_ii_tte_dare_ga_itta_yo/ (i remember a chapter when the seme is feeling it)
http://www.mangago.me/read-manga/ibitsu_na_koi_no_seesaw_game/
http://www.mangago.me/read-manga/omoichigai_ga_koi_no_tane/
http://www.mangago.me/read-manga/ore_no_shiranai_murakami_kun/
I only pick the one i feel had the same thing as what you're looking for, idk if you'll like but here it's
Following~ ლ(´ڡ`ლ)
Exactly my preference!
http://www.mangago.me/home/mangalist/193488/
Yaoi manga where the seme actually looks like he's feeling good. No stoic faces or emotionless eyes. Or worse, the poker face. I want sweat, blushing, gritted teeth, and glazed eyes. Something that tells me the seme is feeling so much pleasure he'll explode. So...yeah. Thx.