In hindsight, I think cartoons aren't made entirely for the younger generation, they are meant for the grown ups as well. Or maybe the movie makers decided to have an inside joke and threw in some sexual imagery just for a few laughs. There are many shows that subliminally added sexual content, much to the horror and dismay of the parents who were smart enough to spot it. 

Here's a list of 18 such cartoons where 'sex' made a guest appearance: 

1. Lion King

Perhaps the creators decided to play with your imagination when they released the poster of Lion King in 2002. If you look closely, all you see is a woman's derriere, clad only in panties!

Source: YouTube

2. Mickey Mouse- Bladid

Mickey and Minnie's innocent love story turned out not-so-innocent. This cover of Bladid, shows Mickey Mouse engaging in some secret activity!

Source: YouTube

3. The Little Mermaid

This Walt Disney classic shows the main characters with a castle in the backdrop. A closer look at the castle shows there's something mischievous on the creators' part!

4. The Little Mermaid

And that's how Sebastian came out of the friendzone!

Source: PlayBuzz

5. The Little Mermaid... (again!)

I think The Little Mermaid and sex go hand-in-hand. In this wedding scene, the minister appears to have a "hard-on".

Source: Digitamix

6. Hercules

In Hercules, when the muses are singing the song Zero to Hero, one of them steps forward and her dress flies up, revealing quite a lot!

Source: VietStar

7. Toy Story 3

This scene might have scarred every child who grew up on Toy Story! The characters are seen gawking at what they're witnessing: a grown up Andy engaging in sex!

Source: Keep It On Fleek

8. Lion King (again)

After the scene where Simba lies down on a cliff, dust flies up into the sky and forms the word 'SEX' for a brief moment. I guess that's what Simba needed at that point in time. 

Source: Digitamix

9. Spongebob Squarepants

Hailing from a place that's called Bikini Bottom, this show always made sexual references, quite like the image below!

10. Spongebob Squarepants (at it again)

Wonder what Squidward is trying to "pump out"!

Source: Kendte

11. Tom & Jerry

Tom and Jerry was a show aimed at kids, but that didn't stop it from subliminally flashing sexual imagery. Like this for instance!

12. Tangled

Perhaps this Disney movie had hidden clues to the kind of content that it wanted to show! Well, the word "SEX" spells out clearly as the lady 'entangles' the protagonist!

Source: GoSocial

13. Recess

One of my favourite shows while growing up, Recess had some 'not-so-pretty' moments. Mikey is definitely trying something he has never done before!

Source: GoSocial

14. Recess (again)!

The hard to please Muriel Finster (pun unintended) seems to enjoy what she's riding (pun unintended)! 

Source: ZM

15. Rugrats

Oh hell no! What the fuck did I just see? Did the creators of Rugrats realize how mentally scarring this image is?

Source: PlayBuzz

16. Ed, Edd n Eddy

I always knew there was something shady about this cartoon especially the quest for them 'Jawbreakers', but 'wut da hail' is Eddy trying to do?

Source: GoSocial

17. Donald Duck

Waking up is the 'second hardest' thing for Unca Donald!

Source: PlayBuzz

18. Rugrats All Grown Up!

Rugrats continued the trend of subliminal sexual messaging in the spin-off show called Rugrats All Grown Up! A grown up Susie Carmichael seems to enjoy what she sees.

Source: Connery

Innocence lost?