Naruto is amazed by the beauty of a large waterfall nearby and starts veering off the hiking trail in order to summit it. Kushina, who sees him step off the trail, starts telling him to come back but Naruto was persistent and just kept going on. Bee and Kushina were left alone not really knowing what else to do so they both sat along the paved trail.
The pair waited and waited and soon the sun was on top of them and they started sweating. Bee removes his shirt and notices Kushina glancing on him, so he gives her a smile and she immediately blushed. The two would casually chat and glance each other every now and then until Bee suggested they play a game of strip or dare! And after several minutes both were down to their underwear, with Bee advancing on Kushina, grabbing her ass in the process. Kushina would return the favor by grabbing Bee's enormous dick.
Meanwhile Naruto reaches the top of the waterfall ready to announce his success. Just as he begins looking for his mother and friend he sees a trail of clothes leading out of where he remembered they were moments ago. He sees three people, all naked, and in some sort of inter course. Curious and at the same time anxious, Naruto runs down to the lower portion of the waterfall to get a better look. Upon reaching to his destination he now clearly see Bee and a clone fucking his mother's ass with the latter clearly enjoying it!