u.s. of viagra, a drug he seems to suggest that he takes not because he wants to. >> i think viagra is beingizer today, correctly, promoting it as an impotence drug. >> reporter: what is it? >> it's a sexual enhancement drug, the best legal wreck riegsal drug out it. >> reporter: could you live your life today without it? >> no, i've got four girlfriends. are yo . >> reporter: you're going out at 10:20. >> there's nothing doing in this town until about 11:00. >> reporter: as the party continued past midnight it became the tenth anniversary of the day he married kimberly. >> i'm a romantic fool. i was born in that impossible world where the words of the songs are true, cole porter and gers win. >> reporter: normally they go off into the sunset and live happilev >> yeah, they never deal with the part that comes after that. >> oh, wonderful to take a look inside there and sigh elizabeth vargas from way back when. hugh hefner was responsible for a change in my life. here's a clip that will kind of explain. >> i don't know about you, but when i was growing up, the girls next door didn't look like