Miley Cyrus turned 22 on Sunday, and we already gave our X17online readers a peek at what she wore to her party, but now we have more dirt on what went down -- and from a mechanical bull penis ride to hardcore porn playing on TVs all over the place, the singer certainly knows how to throw a party! A party fit for a pervy teenage boy, that is...

Miley posted a few more shots from her wild weekend on Instagram, and while the pizza cake is cute, the fact that she went topless and had XXX movies playing at the bash really rubs us the wrong way.

Someone uploaded the above shot of Miley and new boyfriend Patrick Schwarzenegger stuffing their faces with cake, and while we actually think these two are perfect for each other, apparently Patrick's mom Maria Shriver is about to have a meltdown over her son's romance with the pop superstar.

"It is beyond true that Maria disapproves of the relationship that Patrick is starting with Miley," according to a source for HollywoodLife. "She is so controlling when it comes to the image of the family and this is eating her up inside." Apparently mama Maria is gaining support from other family members, "but she isn’t getting the same support from Arnold [Schwarzenegger] because [he] is happy with whatever Patrick gets himself into in the girls department.”