Sexy time with Hino-Sensei will always feel kind of strange. Just not what he's known for! There was a funny bit in an interview with him I read a while ago where he basically said he tried his hand at eroticism but went back to horror because he thought he couldn't draw women the way he wanted to.
There's one story in this collection that borders on pornography that he did for an erotic magazine. Never thought I'd see Hino drawing bottles where they don't belong, other then stabbed into someone gruesomely!