Short age progression animation: Girl imagines herself growing bigger breasts in a cutaway transformation scene
5-page black and white comic: Woman is breastfeeding when her infant daughter begins to literally suck the years away from her
22-page color comic: High-school girl age progresses into a bimbo.
13-second black and white animation: Woman turns into a little girl while masturbating
4-part color sequence: Male furry regresses
17-page color comic: 3 separate female regression stories. One contains male regression as well.