Despite dealing with some major baby mama drama, Louis Tomlinson and his 17-year-old sister had a night on the town, hitting up The Troubadour in West Hollywood on Wednesday night.

The 24-year-old One Direction singer donned black pants, Vans and a motorcycle jacket for the music show. His teenaged sister looked casual in black pants, a sweatshirt and a leather jacket. Aww they match!

It seems as though the singer's sister has been in town to give the popstar some support during this trying time.

Last week, reports surfaced that Louis and his baby mama Briana Jungwirth had finally reached a "temporary custody settlement" in their battle over newborn son, Freddie Reign.

However, TMZ is reporting that one of Briana's major conditions of the custody agreement is stopping Louis's new girlfriend Danielle Campbell to spend time with Freddie. According to the site, Briana is concerned about another woman spending time with her son during the "critical bonding period" between mother and baby.

Apparently Louis can only spend time with his son at Briana's house currently -- but it looking to be able to have visits with his son at his own home with his girlfriend present.

Louis and The Originals actress have been dating since last year -- but things got more serious since the 1D member made Los Angeles his home.

TMZ also claims Louis and Briana have been at odds over money, since she asked for "way more" financial support than the singer was willing to give.

Boys and girls, this is why you wear a condom when you are a pop star and have one-night stands!