They’ve been spied on covert dates before, but Scarlett Johansson officially went public with new boyfriend Sean Penn at her agent’s wedding to Reese Witherspoon this past weekend. Us Magazine says:

Johansson, 26, and Penn, 50, have tried to keep their fledgling romance quiet… but the duo were finally ready to go public on Saturday at Reese Witherspoon’s wedding to Jim Toth.

When the farm-style bash was over, Penn and Johansson stopped by Jimmy’s Bar for a nightcap and late-night grub.

After the table cleared, she sat in Penn’s lap — and they made out in full view for 15 minutes, according to the observer.

Sean Penn seems clinically incapable of experiencing joy or bowel movements, so I can only imagine how awful he is in the sack. He probably makes Scarlett wear a beard and smoke a cigar and yell things like “Imperialist, genocidal, fascist deconstruction of civil liberties!” and “Líder revolucionario!” the whole time they’re doing it.