Kyoushitsu no Yugami
Abusive relationship between an older male teacher and an underaged male high school student incorporating dubcon, exhibitionism/public sex, secret vibrators, sounding, blackmail and humiliation.
Iiwakenante Zenbu Uso
Idiot couple at school with an especially naive uke for ravishment fantasy scenario. Uke goes from virgin to rape trope, fruit kink, sounding and adult forums within a matter of hours and still dithers whether they are friends. From the art style, it's meant to be cute, but I found it scattered and dialed to near constant freak-out, and couldn't suspend my disbelief even for the purpose of pure smutty goodness. Weird. So much kink and it still tastes like vanilla.
Ore wa Kawaii Otouto to
Kinky yaoi involving sounding, urethral stretching, intra-urethral insemination, and other toys, public sex at the workplace, attempted blackmail and brother x brother incest.
Buji Oni Zeme Seiyoku Zukan
Umm... yeah. Sort of a roll-call of kink and fetishes from spanking with buttplugs to bondage with sounding, all based around a plot involving high school delinquency, inappropriate use of the nursing office, and an aggressive female colleague, all to a cringe-worthy pillow-talk soundtrack. The second chapter is an improvement, but I've seen better, and the fluids! You can't even see their bodies. Blech.
Hajimari Wa Naka Kara
A salaryman gets caught by his supervisor at work purchasing sounding catheters, which leads to him being blackmailed into sex, fetish play and club scenes. The slight scrap of plot is focused on whether the two men love each other beyond the sex.
Escape From The Night
A traumatized accident survivor deals with his night terrors by losing himself in casual sex until one of his encounters refuses to be treated like a tool. In order to make his case, he employs actual tools ... a vibrating sounding tube, in this case. Sexy and hot.
Pick Up