Valentine's Day Pink Masquerade: Join us for a sexy masquerade party to celebrate Valentine's Day with DJs Ron Kurti, Paul Rush, Jackson, Brooke, and more, 10 p.m.-3 a.m. Friday, Feb. 14, $5. Asia SF, 201 Ninth St. (at Howard), 255-2742.
Valentine's Day Sex Tour: Narrative tours about the mating and courtship behaviors of animals including refreshments and chocolates, 10 a.m. and 2 p.m. Friday, Feb. 14, through Sunday, Feb. 16, $55, 753-7165 (reservations). SF Zoo, 1 Zoo (at Skyline), 753-7080.
A Valentine's Day Singles' Tingle and Mingle: Fairy Butch hosts a sex-positive party for "gals, transfolk, and their pals," featuring DJs, strippers, and more, 9:30 p.m. Friday, Feb. 14, $10-$15. Club Galia, 2565 Mission (at 22nd St.), 970-9777.
"Valentine's Day Solar Roses": Art show featuring solar-powered rose sculptures, with wine and hors d'oeuvres, 6-10 p.m. Thursday, Feb. 13, through Saturday, Feb. 15, free. Sunbrothers Studio, 2323A Magnolia, Oakland, 510-839-2323.
Valentine's Day Vampire Tour: Tour of seven famous stops on Nob Hill with local vampire lore, 8 p.m. Friday, Feb. 14, and Saturday, Feb. 15, $15-$20, 650-279-1840 (information). California & Taylor Sts.
Valentine's Double D Double Feature: Featuring the local theatrical premiere of William Winckler's comedy thriller, The Double D Avenger, 7:30 p.m. Thursday, Feb. 13, $8. The Parkway Theater, 1834 Park (at Lake Merritt), Oakland, 510-814-2400.
Valentine's Night Out: Our Family Coalition and the SF LGBT Community Center present a celebration of romance that includes on-site California State Domestic Partnership registrations, a wedding cake—cutting ceremony, and dancing, 6:30-10 p.m. Friday, Feb. 14, free-$25. SF LGBT Community Center, 1800 Market (at Octavia), 865-5555.
A Very Special Pink Taco Valentine's Day Party: Featuring DJs Brad Robinson, Shanti, and surprise guests, 10 p.m.-2 a.m. Friday, Feb. 14, $5, 626-2626 (information). Il Pirata, 2007 16th St. (at Utah).
"XOXOX: An Exhibition of Heart Art, Valentines, & Love Letters": Group show celebrating the art of romance, through Feb. 28. SF Center for the Book, 300 De Haro (at 16th St.), 565-0545.