Although they were just friends, after missing the last bus at a drinking party, they spent the night together in a hotel and their relationship blossomed into a romantic one. ...And so it continued with this male friend, gentler than a boyfriend...and she fell into an insatiable sexual quagmire. (Nanjo Aya IPZZ-160)

"I might get serious..." We sank deeper and deeper into the swamp of sex. Even though we're friends, we're still opposite sexes... Sleeping in the same bed makes me want to do bad things. "I know it's wrong, but I don't feel bad..." Although I have a boyfriend, he's just a male friend, and the nicknames we use are quite nice. The different kind of sex compared to my boyfriend makes us even more infatuated. "His penis gives me more pleasure than him..." We sank deeper and deeper into the swamp of sex. Sex with a friend I'd known before is incredibly exciting...