This is ruining Jun's rep and his fans didn't like that at all obviously.
Jun Matsumoto (born August 30, 1983), often called by the portmanteau nickname Matsu Jun, is a Japanese idol, singer, actor, and radio host.
He is a member of Japanese boy band Arashi and is best known to Japanese television drama audiences for his portrayal as Tsukasa Dōmyōji in the Hana Yori Dango series, in which he won GQ Japan’s Man Of The Year Award under the singer/actor category for his work in the drama.
There is evidence that point to them dating, such as wearing the same boots, bracelets, rings, and rosary necklaces.
Also, the way Jun is a lot less reserved around her (which is a first, since practically all of his other female co-stars have all described him as "scary," "unapprochable," or "cold") could also lead to speculation that he has feelings for her.
Since ARASHI is a very hot band at the moment, their agency cannot let the fans down by allowing Matsumoto and Inoue to get married.
Many fans and tabloid writers expect the two to get married sometimes soon, but we are never sure of when the two will get together.Thinking it might bode good luck, he sent his application to the agency on his elementary school graduation day and received a phone call weeks later from president Johnny Kitagawa himself, inviting him to attend a rehearsal instead of being auditioned.Due to this, Matsumoto is frequently referred to as one of the elite within the agency. We don’t have any information about his past affairs & dating.Whether Mao and Jun are really dating or not or whether Jun really had a scandal with this av girl or not, the fact that this av girl had the audacity to reply to reporters insinuating that jun and her really had something is hurting and tarnishing his reputation.Regardless whether she's lying or not, reporters/tabloid reported her answers as if its true.He was born in Toshima, Tokyo, as the youngest child in his family.