Complex sentence: She was surreptitiously dosed with the "Garganta" formula (which originally turned Dr. Carol Heisler into the giantess Garganta) though given a small amount, Tara grew right through the roof, thus demonstrating the remarkable stretching properties of her Span-XX bikini.
Split into simpler sentences: She was surreptitiously dosed with the "Garganta" formula (which originally turned Dr. Carol Heisler into the giantess Garganta). Though given a small amount, Tara grew right through the roof, thus demonstrating the remarkable stretching properties of her Span-XX bikini.