Right now I think they're stuck at however hard they are when you leave the lab room.
having a fully erect penis all the time kinda ruins the fun of having one. maybe if a flaccid penis could replace the erect one after enough time passed.in order to get the character's penis erect again, simply selecting an interaction could make it ready for that interaction.
especially since the grower/shower mechanic doesn't do much if get stuck at fully erect regardless
Customer support service by UserEcho