Harry Potter co-stars Emma Watson and Tom Felton may be dating. Potterheads are freaking out at the prospect of a Hermione and Draco or "Dramione" relationship. Due to Felton's recent Instagram posts, fans are shipping the pair harder than ever.

British actors Emma Watson, 29 and Tom Felton, 31, have sparked romance rumours on and off. This time around, the romance rumours were stirred when Felton posted a photograph of the two of them on his Instagram on Monday.

The duo, popularly known as Hogwarts students Hermione Granger and Draco Malfoy, reunited for a jam session. The picture shows Felton teaching Watson how to play the guitar. The actors are seen donning pyjamas and jamming in South Africa. "Quick learner x," Felton captioned the picture.

In another photograph, Felton is sitting cross-legged on the beach with two thumbs up. He wears a T-shirt that reads, "WOMEN DO IT BETTER". He credited the photo to "EW."

According to Mashable, Watson and Felton have been close friends for a long time. They maintained their friendship even though it has been quite a few years since the last "Harry Potter" film was released. They make appearances in each other's Instagram pages very often. Neither Watson nor Felton's reps have officially confirmed the relationship.

Emma Watson
English actress Emma Watson poses during the photocall of Hispano-Chilean director Alejandro Amenabar's movie 'Regression' in Madrid on August 27, 2015 GERARD JULIEN/AFP/Getty Images

The "Little Women" actress once confessed in an interview in 2012 that she had a crush on her co-star and friend Felton. "Between the ages of 10 and 12 I had a really terrible crush on Tom Felton. We love a bad guy, and he was a few years older and he had a skateboard and that just did it really," Watson admitted on the "The Jonathan Ross Show".

She loved the fact that Felton was cool and could do many tricks with his skateboard. Watson shared how he knew that she had a crush on him, but he would just turn and go. The "Beauty and the Beast" actress was heartbroken when Felton once said that he looked at her as his younger sister. "And it just broke my heart, still does," she said in her interview.