As suggested by cover art for Starfire (Volume 2) Issue #6. Sadly, the comic issue itself turned out to be just titular character choking some serial murder at the party, without Pepe actually appearing at all beyond cover art.
Pepe Le Pew, a striped skunk known for his habit to chase women, mainly (but by no means limited to) female white-striped black cats, unsuccessfully due to his nausea-inducing body odor. He's also known to chase male cats like Sylvester, human women (like in LT Show), bulls and dogs. However, whenever his target reciprocates his feelings and turns the tables, Pepe usually starts running away in fear, which happened often in his earlier shorts.
Starfire AKA Koriand'r, a Tamaranean princess who crash-landed on Earth, trying to escape Psions. Capable of absorbing ultraviolet radiation, flying through both Earth's atmosphere and vacuum of space, learning new languages through kiss, as well as projecting explosive energy bolts.
Ignoring the fact that Pepe has recently been wrongfully banned by WB due to controversial nature, would this type of crossover fit with recently made series DC Meets Looney Tunes?