Giving the kids a visit and bringing them lunch during training was a usual gesture Kushina had been doing for over a year now. She had gotten close to them ever since, specifically with Obito, Kakashi and Guy, with the latter only there to torment Kakashi.
Things started out normally and just as she was handing them lunch, she felt a hand groping one of her ass cheeks. Kushina was startled and immediately look back to see Obito, who was too slow to react, still had his hand on her butt. The kid could literally see her blood boiling until Kakashi leaned in for a kiss, followed by Guy who had both his hands on her chest. One thing led to another and the 4 of them hurried to the locker room.
Once in the room, the boys quickly undress the older woman before unbuckling their pants and rubbing their dicks on her. With a long day ahead of them and their teenage hormones kicking in, they took turns fucking her mouth, pussy and ass for hours long!