There is a lot of it for the sake of satire. Many of Chris' sexual related antics (His sex tape, etc.) are parodied in this series.

Blake (Black Sonichu) has sex with a blow-up doll named "Officer Nasty".

Sonichu sucks on Chris' manboobs (censored for comedic value)

A black policeman (A "Jerkop" in Chris-chan terms) rapes and urinates on Chris. It is censored on the YouTube version, but is not in the Newgrounds version.

A Ninja forces Chris to shove his medallion up his rectum. This is based on a real life event where a 13-year-old boy makes Chris do the same thing.

Chris, Sonichu and Rosechu all have an orgy together.

Bionic tells Chris that he has been sucking his girlfriend's dick.

When Mary Lee Walsh explodes, she claims a video was done for her sexual pleasure, which soon makes her fire some crabs from her vagina at the Ninja.

Angelica finds herself in a dream where he wants to have sex with God.

In Episode 7, Sonichu and Rosechu are about to have sex together (an adaptation of Sonichu 8), but this isn't shown in the actual episode. As they proceeded to do so, Chris-Chan explains about how Sonichus have Penises and Rosechus have giant airbags on their bodies (as species in general).

Rosechu rants about how she's going to go take nudes and nobody is going to photoshop a penis on her. (Episode 7)

Sonichu starts to jerk off to the images found on a 4Chan parody (episode 7)

Beel demands that Sonichu should suck his dick in order for them to advance into Jason's building (episode 7)

Jason is revealed to be a sex slave, and he also proceeds to streak (episode 7)

Blake wishes to have sex with Bubbles Sonichu. Silvana Rosechu transforms into Bubbles and their sexual pursuit is described by the show as "five panels of grotesque bum-sex".

Punchy has poop sex with her body. (Episode 8)

Bubbles Sonichu (the actual character this time) is about to have sex with Blake (a disguised Silvana Sonichu) but he is stopped when he finds out that isn't Blake.

Chris masturbates to Transformers footage as he wees in his Ice Tea (episode 9)

Allison walks in on Chris-Chan having sex with Julie (in reality, Julie was a fake girlfriend made by a 13-year-old boy, which Chris did a fantasy sex tape with an Anime blow-up doll which went viral on the website SlutLoad) (episode 10)

Very strong language in every episode. Fuck is said many times, in addition to other racial and homosexual slurs. There are also many stereotypes of black and homosexual people as well.

Unless you've experienced the world of Chris-Chan, the whole series is shocking in content wise. The amount of sex related topics and scenes proved to be too much for YouTube anyway.