Fluff
From Voyeurweb's Wiki about Sex
Fluff means to cause to be erect or aroused. As in getting a porn actor/actress in a state of arousal before their big scene. This could be sucking on nipples, a cock or anything else requiring arousal. Typically the fluffer is specially hired girl for a movie set, whose only job is to turn small penises into erected penises before the actual taping starts. The fluffer girl usually does that starting with a handjob and sometimes even combining it with a blowjob. A fluffer girl usually gets around 50 bucks for each erection she was able to create.