Yumizuki's first time having sex with a "blonde delinquent" . He's so excited that he's going to "make a mess" of Souichi's sex life if he doesn't "swoop ah" and "plop smooch huff" , which is basically the same thing as "kiss, i love him, kiss, i touch him so much, love you, too." Um, yeah, that's right, we're back to the sex scene, where the two guys are having sex for the first time ever. They're having sex in the middle of the night, so they can't hear each other's voices, but they're still having sex because they love each other so much.