Otaku Tomodachi ni Aru Hi Totsuzen Ochinchin ga Haetara...!?

The Day My Nerdy Friend Suddenly Grew a Penis! / オタク友達にある日突然おちんちんが生えたら…！？ BL-loving internet friends Numero Pepeyama and Nasuno are really excited to meet up after attending an event together!

But, upon waking up, Nasuno realizes she, for some reason, has grown a penis...