MANILA – It appears that Filipino-Swiss racer Marlon Stockinger and Miss Universe 2015 Pia Wurtzbach are unfazed by rumors currently hounding their relationship.

Amid reports that the couple unfollowed each other on Instagram, Stockinger candidly shared his photo with Wurtzbach on Tuesday as he celebrated his 26th birthday.

In the photo, the two can be seen walking together, with Stockinger’s hand on Wurtzbach’s waist.

Another Instagram Stories post, this time by Stockinger’s friend Ivan Carapiet, showed the two having fun with their friends at a house party.

It was in March when Wurtzbach was first asked to react to rumors that Stockinger is already a father.

“Are you sure it’s the same Marlon? There’s a lot of Marlons,” said the beauty queen, who was visibly surprised by the question. “I don’t know anything about that,” she added.

Last week, entertainment website Pep published an exclusive interview with model Kit Barraquias, who claimed that Stockinger is the biological father of her twin daughters.

Barraquias shared that she gave birth in September 2009 at age 27, and Stockinger was only 18 years old at the time.

The model said she has been raising her daughters alone, and stressed that she is not asking for any financial support from Stockinger and his family.

Wurtzbach and Stockinger confirmed their relationship to the media early this year.

The two have yet to address the statements made by Barraquias.