Madara was teaching Itachi and Naruto while Mikoto was out with Fugaku and Sasuke when something came into mind, "Naruto, Itachi do you guys know what sex is." The responses he got told him from a blushing Itachi and a confused Naruto. "Okay Itachi get me the best books on sex and examples of it while I talk to Naruto about what it means." So Itachi put on his weasel mask and left. "Naruto, I want you to listen to me very carefully because Kunoichi will use sex and seduction to get information from men even you. So I will teach what sex is." after a discussion between the two, Itachi saw an amused and smirking Madara and a huge blushing Naruto. "Ah, Itachi your back, do you have the books." at Itachi's nod, he clapped. "Naruto I want you to read these books." Naruto picked them up and started to read. After the first page he flew back with a nosebleed. Madara curious as to what happened read the first page and flew back with a nosebleed as well. Itachi wanting to not feel left out also read and the results ended up the same. All three wearing shit eating grins. The next morning Mikoto saw them and book and gave them a very painful beating using heels chakra and a kunai stating it was training.