Irvine Welsh with the same name in 2013. "Glue" (2001) was a return to the locations, themes and episodic form of "Trainspotting", telling the stories of four characters spanning several decades in their lives and the bonds that held them together. Having revisited some of them in passing in "Glue", Welsh brought most of the "Trainspotting" characters back for a sequel, "Porno", in 2002. In this book Welsh explores the impact of pornography on the individuals involved in producing it, as well as society as a whole, and the impact of ageing and maturity in individuals against their will. The book is
Talk About S was announced as the lead single for "Talk About S" after the album's track listing announcement. Written by Kim Eana and produced by Lee Min-soo, "Bloom" received positive reacts after its release. Its accompanied 6-minute-long music video was released on October 5, 2012, featuring Gain performing a pole dancing. The song became her first number-one on the Gaon Monthly Singles Chart. The song is Gain's best-selling single to date with almost two million digital copies, and also her co-highest charting single on the now-defunct "Billboard" Korea K-Pop Hot 100, peaking at number two (the other one being her next pre-release