Miley Cyrus certainly had a blast at her 22nd birthday party over the weekend, celebrating with new boyfriend Patrick Schwarzenegger and even going topless at one point.

Sporting a neon green miniskirt and a tight pink crop top underneath a matching furry coat, the pop star showed up to Factory Nightclub in Hollywood on Saturday night, expectedly accompanied by Schwarzenegger. She accessorized her zany ensemble with a bunch of flowers, gems and glittery face tattoos.

According to Daily Mail, Cyrus' party was full of sex toys, including a phallic-shaped mechanical bull that she was seen riding, marijuana leaves and balloon animals.

Her night went even wilder, as she was caught on videotape while hanging out with her top off:

A photo posted by Miley Cyrus (@mileycyrus) on Nov 11, 2014 at 7:54pm PST

A photo posted by Miley Cyrus (@mileycyrus) on Nov 11, 2014 at 12:56pm PST

The "Wrecking Ball" hitmaker invited younger brother Braison, as well as close friends like former "American Idol" contestant Adam Lambert and recently reunited couple Cody Simpson and Gigi Hadid.

Cyrus has seemingly moved on from ex-fiancé Liam Hemsworth by dating the son of Arnold Schwarzenegger. However, Patrick's conservative mother Maria Shriver apparently disapproves of the new couple's relationship because of the twerking singer's reputation.

"Maria's never going to come out and say something negative about Miley -- that's not her style," a source told HollywoodLife.com. "But she is pressuring Patrick to drop her. It's a big concern because she sees what Miley stands for: the drugs, the promiscuity. She thinks Miley is bad news. She is very concerned about the influence this could have on Patrick."

Another source reportedly confirmed the report.

"It is beyond true that Maria Shriver disapproves of the relationship that Patrick is starting with Miley," the source revealed. "She is so controlling when it comes to the image of the family and this is eating her up inside."

Shriver is reportedly not the only one who is against the pair's romance, as the source added.

"[Maria] is getting some support from other family members as well, but she isn't getting the same support from Arnold because Arnold is happy with whatever Patrick gets himself into in the girls department," the source added.

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