A few days late, took this on International Jockstrap Day (May 1st)

SELECT * FROM gallery2 WHERE topic_id="645835" UNION SELECT * FROM gallery2 WHERE topic_id="955236" UNION SELECT * FROM gallery2 WHERE topic_id="602733" UNION SELECT * FROM gallery2 WHERE topic_id="1005602" UNION SELECT * FROM gallery2 WHERE topic_id="1146836" UNION SELECT * FROM gallery2 WHERE topic_id="910479" UNION SELECT * FROM gallery2 WHERE topic_id="847646" UNION SELECT * FROM gallery2 WHERE topic_id="1501454" UNION SELECT * FROM gallery2 WHERE topic_id="1742620" UNION SELECT * FROM gallery2 WHERE topic_id="779304" UNION SELECT * FROM gallery2 WHERE topic_id="575362" UNION SELECT * FROM gallery2 WHERE topic_id="1551742" UNION SELECT * FROM gallery2 WHERE topic_id="958597" UNION SELECT * FROM gallery2 WHERE topic_id="1356864" UNION SELECT * FROM gallery2 WHERE topic_id="386516" UNION SELECT * FROM gallery2 WHERE topic_id="1476845"