Erin Frost
Frost, who started out as a cowgirl from Montana, debuts a series of sexually charged self-portraits in the tradition of erotic pinup photography. Aalto Lounge, 3356 SE Belmont, 235-6041, Through June 30

* Kiss Slut
The ever-prolific Nic Walker debuts a new collection of paintings on wood that evoke a heavy metal slant on the scribbly expressionism of Cy Twombly. Pause Gallery, 625 NW Everett St. 110, 503-888-7895, Through June 27

Portraits of Trees
Last January, New York writer Charlie Finch complained of "too muchness of the sameness" in the art world, and cited the proliferation of artists who paint trees as a prime example. Trees used to be the exclusive domain of Sylvia Plimack Mangold, and now you can hit a handful of tree shows in one afternoon in Manhattan, Finch contends. Well Charlie, here's another artist for the heap. Sarina Dorie presents her arbor portraits for one more week at PSU. Littman Gallery at Portland State University, Smith Center, 1825 SW Broadway, 725-5656, Through June 24

* Repetition & Pattern
You can't spell "party" without "minimalist prints" (OK, you really can, but play along), so for one more week, Augen Gallery is your party headquarters with a gang of prints by Sol Lowitt, Bridget Riley (when did she become a minimalist?), Robert Mangold, and many others. Augen Gallery, 817 SW 2nd Ave, 224-8182, Through June 24

* Targets and Trophies
Kim Hamblin and Ky Anderson team up for this two-person show exploring the relationship between hunters and the hunted. Anderson's super-fragile balsa wood sculptures based on hunter's trophies are especially charming and fun. Motel, NW Couch between 5 & 6, Through June 26