[FIXED] [LS] Siblings form romance bar after "Show Off Fitness" interaction

Product: The Sims 4
Platform:PlayStation 5
Which language are you playing the game in? English
How often does the bug occur? Rarely (0% - 9%)
What is your current game version number? 1.97
What expansions, game packs, and stuff packs do you have installed? 11/16 EPs, 7/12 GPs, 12/20 SPs, and 9/53 kits.
Steps: How can we find the bug ourselves? Take your siblings to a gym and workout.
What happens when the bug occurs? A sibling will autonomously perform Show Off Fitness to the other and in turn, a romance bar forms.
What do you expect to see? Sims who are related not forming romance from Show Off Fitness or not being able to perform that action to each other at all.
Have you installed any customization with the game, e.g. Custom Content or Mods? On console - never used.
Did this issue appear after a specific patch or change you made to your system? Neutral/Not Sure 

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As stated above, I took my Sim to the gym in Ciudad Enamorada and had her run on a treadmill. While she was working out, her brother came up to chat. They chatted normally at first and then the brother suddenly flexed his muscles towards her (Show Off Fitness), she responded positively, and then a romance bar formed between them. I've never had this happen before nor have I seen anyone else post about it.