Earlier, we reported that JYJ were selected to be the endorsement models for painkiller brand,�'Penzal Q'. A few behind-the-scenes photos from their 'Penzal Q' CF shoot have emerged online, and fans immediately warmed up to the sight of the trio having fun together on set. The members, who haven't been able to meet up as frequently due to their individual schedules, were seen enjoying each other's company. Their mischievous expressions and dashingly handsome looks melted hearts, and boosted everyone's anticipation for their upcoming CF. JYJ's 'Penzal Q' CF will air in the beginning of October, and will also be revealed through 'Penzal Q's Facebook page. In the meantime, check out the pictures below! [gallery] Sourcee + Photo: Sports Chosun via Nate