Julia waited till Samantha fall back to sleep and pulled out the flashlight. she thought it would be hilarious if all the girls in her room had cocks. she twisted it to the highest blue setting got up and aimed at Samantha's crouch. her crotch grew a bulge that stopped at a foot long, also noticed a small dial and twisted it to a dial that said HR. while she aimed at the crouch it didn't look any bigger so she kept at it till she saw something. what she didn't know is that HR meant hair, Samantha's balls increasingly hairy as well as her bush. the hair eventually grew to a point where it was poking out from her waistline which made Julia stop after seeing the hair. Samantha's crotch was now a dense jungle that completely hid her balls.
Julia then moved to the next girl, Marcy an African American girl. Julia switched it back to Full and aimed at her crotch as well. once she had a foot-long bulge she aimed slightly lower and aimed it there. she saw Marcy's new balls that grew to two feet that were clearly showing through her new speedo.
she moved on to Susan and hit her crotch. waiting till it was a foot long and switching the dial to MSL. she saw no change to Susan unbeknownst to her this was making Susan's cock and balls stronger in every way. her balls soon became so full of cum that her cock seemed to dibble pre constantly in her sleep. the sack becoming so thick that it was like chain mail. her cock was now permanently erect and hung proudly straight. eventually, she moved on after not seeing any more changes. she didn't know MSL meant muscular/strength.
she finally got to Alex who was the tallest among them. she aimed at her crotch and watched it grow to a foot bulge. she then switched it to SXL and aimed at her crotch again and waited. soon Alex thrust her hips in her sleep as cum spilled out of her boxers. this woke her up and Julia ran back to her bed before she saw her. after that, she put the flashlight back in her bag and went to sleep.