If you were directing a movie in which you kissed...
and slept with a coupla girls, wouldn't you hire at least one cute and one gorgeously hot to fit the bill?! Of course!!
Alda lucked out. Michelle's role could've been played by any talentless hack, the role didn't require anything but an accent at points. I would've hired her in an instant just because I got to make out with her (and be nude beneath the sheets with her).
Same goes for Lise Hilboldt, who's cute and makes for a nice "wife" figure. haha.
I always wondered why Clint Eastwood didn't have hotter babes in his movies. His women weren't all that great.
First, I shall take your milk. Then, I shall take your virginity!