When Kirk examines an apparatus in the room, Lester activates it. It traps Kirk into position on one side of it. Lester then rises from her bed and stands alongside Kirk on the apparatus and effects a life-entity transfer, each from one body into the other. Lester (in Kirk's body) discloses to Kirk (in Lester's body) her plan to command the Enterprise, as well as her willingness to kill. Lester/Kirk starts to strangle Kirk/Lester but is interrupted as the others return. Lester/Kirk disables the cell's force field and orders Kirk/Lester to come out as he/she will be the first to be executed, lying that the prisoners would be moved to different cells — supposedly to prevent further conspiracy. But before Lester/Kirk can kill Kirk/Lester with the hypospray, the life-entity transference wears off completely and Kirk, now in his own body, successfully prevents the murder. Lester, in her original body, collapses into enraged hysterics over her total, and now permanent, defeat.

Season 7 Episode 178 Reunion with the Black Organization ~ The Resolution Shinichi has Ai drink an old Chinese sake named Paikuru which returns one's body to its proper age for a short while, although it only works once before the body developes an immunity. There's a long buildup to the (unseen?) AP which makes for a good mood-setter. Afterward (offscreen?) she immediately removed the remains of her child clothes and changed into worker's coveralls. She only came up to the knees of adults, which makes for quite a size change and much destroyed clothing. Shinichi now only reaches his girlfriend's knees with much interaction. The effects of the alcohol wear off and Ai regresses back to her child form.