Okusama ga Seitokaichou!

Teenage girl(s) is currently living with a single, curious, teenage boy: Lewdness ensues. For some reason, the girls in both anime are thirsty beyond comprehension for dick, and the guy, as pure-hearted as he might be, occasionaly gives into their seduction. If all you really want is raunchy humor with hardcore-ecchi on the side, either of these anime will work for you.  

The main character suddenly finds himself involved with a beautiful girl in some kind of a forced relationship, with many comedy and ecchi scenes to enjoy. 

Both have lots of ecchi, and a simplistic plot. They also have a similar art style. In both of them, the main characters are in highschool, and the parents approve of their relationships. Only difference is that Kiss x Sis is incestuous, while okusama isn't. 

Two girls with similar personalities and looks fight for MC by making hot stuff (Shorthair persistent Ui/Sunao vs Longhair shy Rin/Yuki). While Joshiochi is hentai, Okusama is balancing on ecchi borderline. 

For starters, it follows the same series of comedy as the other one, plus they are both pretty happy anime and revolve around the same kind of stuff 

Both male MCs are put into situations where they have to look after the female character against their will, while also dealing with the fact that they’re constantly needed to be protected by forces against their will. 

Hot romantic action anime, if you know what it means. 

- Both animes have an early young couple living together in the first ep. The context is 'marriage' - The MC doesn't know which girl he wants to be with - Both have ecchi with the main couple - Nerd MC, but I don't know why he is so popular - Suddenly ecchi sometimes without contexts - Main scenarios: Home and school - The couple live alone 

Ecchi/ light hentai depending on if you watched the uncensored version or not (both are on Crunchyroll). Romcom where mc gets into extremely sexual predicaments for random reasons 

Similarity - life of a couple that lived together Difference - Okusama is full of ecchi and harem Which one is better? For me is Danna. 

Both female main characters are short-haired and extremely clingy in their own way. The major difference between the two shows: Oku-sama is ecchi while the other is not. Despite that, I find Uzaki-chan more enjoyable.  

Kinky Stuff happens in secret... Tried to do much honeytrap and sexual acts to keep in company.. Since the romance in each other is still there.. Hanabi and Mugi's indecent relationship is actually similar to Wakana and Izumi .. 

the guy is forced into a funny relationship with the girl by the girl/girl's family 

+ Both are enjoyable as hell...(endings included) + Both have very clingy female leads ( Wakabayashi & Ui ) + Spreading of Love & Marshmallows!!! ( Marshmallow love!?!? ) + Male leads ( Hige-san and Hayato ) are funny as hell... ( Hige-san's love for Marshmallows ) & ( Hayato ( extroverted personality ) + Both are very short cartoons ( OtM is only 3:30 min long & OgS is only 8 mins long ) ~ Okusama ga Seitokaichou will be getting second season, but nobody knows if Ojisan to Marshmallow will have 2nd season (I hope it will ) 

Both shows are about female who are married as high School students but have to hide that facts from their friends 

Both shows revolve around a pervy female student council president and a down-to-earth male who doesn't really like sexual humor, with a couple of equally interesting (or perverted) side characters. 

same because they are both shorts and Getsuyoubi no Tawawa has some romance element even so they both pretty enjoyabele so just go watch both  read more 

Shorthair main heroine with school obligations learn to be a proper "girlfriend". A lot of lewd stuff happens. The difference is that Boku no Kanojo rely on dirty jokes, while Okusama is straight ecchi. 

Both have teenagers that discover they are promised to be married. 

Similarity - Two families agreed to let their child married another in the future Difference - Okusama also contain ecchi scenes