If you're a Billie Eilish fan, you probably have heard her latest album Happier Than Ever. Fans are calling her voice angelic and saying that the songs are heartbreaking, seductive, and steamy.

The Los Angeles-based singer released her sophomore album on July 30, 2021 to critical acclaim and rave reviews. Her second LP features 16 tracks, with "Oxytocin" being one of them.

This song was named after oxytocin, which is a hormone that's both neurotransmitter and chemical messenger in the brain, according to Healthline. It's known to affect female reproduction, and it also helps control orgasms, sexual activity, and other aspects of human behaviour.

It's no surprise that oxytocin is linked to romance, as it is a powerful neurotransmitter that's often referred to as the "love hormone." So, what does this lyric mean?

In this sex-themed track, Billie sings that she wants to have a relationship with someone who can do “bad things” to her. This person is clearly a romantic interest that she finds particularly hot, so she doesn't plan on letting him go.

This song is more of a love story than a sex song, and despite its ostensible subject matter, it's an extremely artistic piece. It isn't as overtly sexual as some of her previous work, but it still leaves a strong impression. Moreover, this sex-themed song is actually a pretty daring lyrical move for a 19-year-old girl. It's a testament to her maturity as an artist and her ability to tackle complex topics in her music.