Lady Lydia and the Muscle Tonic (Patreon)

Heiress and aristocrat, 23-year old Lady Lydia leads a fantastic secret life! When she drinks her special tonic her body swells with strength and power, muscles ripping through clothes and breasts bursting from restrictive corsets. Whilst as Lydia she must be shy and demure and focussed on finding a husband, when she drinks the tonic she is Betty "the Brawler", strongest woman in London, and a match for any man!