Kare Wa Suttokodokkoi
Catty girls make life hard for Kaoru who's just trying to look after his childhood friend, Goro, who was once such a cute little crybaby, but has now grown up so big, tall, cool, sexy, self-confident and ... come on, Kaoru! Take that ram-rod butt-plug out and let him in.
Tomodachi Ijou no Koto, Shitai.
Roommates Suga and Hara are such friends that people call them Sugahara, and they seem determined to keep it that way in order not to ruin their friendship. One day, however, masturbatis interruptis happens ... and now it's about misunderstandings, miscommunication and missed opportunities. So standard plot device.
Lovers In 1k Apartment