Tentacles Adult YAOI BL manga「Interspecies Aptitude Test Report」

Suddenly, Kurobuchi is told to take turns with Tentacle by a mysterious researcher.

An aptitude test begins in order to become restrained and helpless by the tentacles crawling all over his body, and as he struggles with the tentacles, his body begins to change...

Although he was confused by the intense pleasure caused by the prolonged prostate development and the overflowing milk due to the effects of the tentacle fluid, his body began to feel pleasure...

English edition