のび太さんのエッチ! お風呂のしずかちゃん のび太さんがエッチ! のび太さんのエッチ
A running gag from the [[Doraemon]] series which involves [[Nobi Nobita]] using various future gadgets borrowed from his friend [[Doraemon (Character)|]] in an attempt to impress his crush [[Minamoto Shizuka]]. Nobita would often end up humiliating Shizuka by exposing her [[nude]] body or her [[panties]], accidentally or not. This often resulted in Shizuka uttering the phase [i]"You're a [[pervert]], Nobita!"[/i]

A similar gag stipulated that whenever Shizuka attempts to take a [[bathing|bath]] or shower, no matter where, when, or how, Nobita will invariably be involved in some way.  For example, if she is at home, Nobita will use Doraemon's "[[Anywhere Door]]" to walk in on her.  Nobita walking in on her in the bath is another common plot, especially if he is using some form of new gadget.

This has become a plot point throughout the series' multi-decade run; in at least one instance she needed to find Nobita (who was lost). To do so, she went skinny dipping -- within minutes, Nobita ended up nearby by coincidence.
perverted nobita (meme)