Karissa and Kristina Shannon became overnight sensations when Hugh Hefner chose them as his next set of girlfriends, replacing Holly Madison. PopCrunch has put together a collection of Kristina and Karissa Shannon pictures so you can get to know them a little better before Hefner ruins them with his 80 year old body.

As we find more photos, we’ll add them to the collection. And as usual, we’ll focus on the hottest pics – and skip the boring ones (click the thumbnail to see a larger picture)