Pen Pop: How could one deny that darling eye? A love-lorn shark pops the question at the terminus of the N-Judah. And at once hearts pop up around the city. A red one atop a hydrant, a pierced one on a mailbox, a yellow yarn one woven into a hurricane fence, and another red one between two windows.

• Tag: Art, bay area, Castro, city, civic center, duboce triangle, graffiti, mission, Mission District, MUNI, mural, Ocean Beach, Photos, San Francisco, sf, SoMa, street art