Looky what we got here. Jen and Vince kissing on the balcony of their penthouse suite at the Peninsula Hotel in Chicago. We know she was in town to support Vince's comedy show. News of the World reported:

We broke news of their romance two months ago—but the stars, who met on the set of The Break Up, have always denied being an item. Now lusty Jen, 36, has revealed her true feelings for Vince, 35, by CLIMBING into his lap, STRADDLING his body and giving him a long, steamy SNOG in full view of passersby.

One witness said: "They were absolutely passionate. They couldn't have cared less if anyone was watching. They might be two of Hollywood's brightest stars but they just looked like any other young couple in love."