While “Below Deck” alum Kate Chastain has remained quiet thus far about the identity of her son’s father, the reality show’s fans have their own theories.

Chastain and “Below Deck’s” chef Ben Robinson first fueled speculation when they posed together. “I am so proud of [...] the mother you will soon be,” the chef wrote on Instagram.

During an appearance on “Watch What Happens Live with Andy Cohen,” Chastain revealed that she had previously hooked up with Robinson, making the speculations seem more likely.

Furthermore, when Chastain revealed her son’s first picture on Instagram, fans thought he looked like Robinson. “Why does he look like chef Ben?!?!” an Instagram user commented.

In an attempt to dispel the rumors, Chastain took to Twitter to share a side-by-side photo of her son, Sullivan, and Robinson as a baby. “Clearly not related,” she wrote.