"American Hustle" star Bradley Cooper and Suki Waterhouse are enjoying their relationship. The H&M model, 20, and actor, 38, had a PDA session in Paris, France while spending a romantic afternoon together on Sunday.

According to JustJared, the couple snuggled while laying down on a blanket at a park in the City of Lights.

[For the PDA-filled photos, click HERE.]

The "Silver Linings Playbook" star laid in Waterhouse's lap while reading a book. The public display of affection was so cute, said the celebrity news site.

There's no word on just what Cooper was reading, the couple looked very relaxed. In fact, E! Online reported they had the PDA of the day on Monday.

"The pretty pair appeared totally engrossed in [the book] nevertheless," said E!'s Peter Gicas.

The twosome have been seeing each other for a while now. Many reports have suggested that the twosome getting together was a fling, but now it appears that things are getting serious. 

Though the actor and his model girlfriend have busy schedules, they are both finding the time to enjoy each other's company.

Waterhouse just finished a spread for H&M, and Cooper has many upcoming movie projects including "American Hustle." He also could voice Rocket Raccoon in the forthcoming Marvel movie, "Guardians of the Galaxy," reported The Wrap.

Tell us what you think about Waterhouse and Cooper together in the comments section below!