Richard Mourdock, Indiana’s Republican state treasurer, posted a new Web ad against his primary opponent, longtime Sen. Dick Lugar (R-Ind.), that insinuates Lugar and President Obama have a closer-than-appropriate relationship.

The ad, titled “Dick and Barry: The Unforgettable Bromance,” includes video of Lugar and Obama complimenting each other. It then segues into a South Park-like animation in which Lugar and Obama approach each other in front of the White House, with a rainbow appearing above them.

Hearts appear around Lugar’s head as Obama walks toward him. While they are next to each other, another heart appears by Lugar’s head as he glances at Obama. Then he slides in closer to the president as they giggle and bounce back and forth together.