Penny and Sheldon aren’t brother and sisters. No brother would willingly peak at his sister naked out of curiosity like Sheldon does when he’s trying to help Penny dress and go to the hospital for her dislocated shoulder.
The writers decision to change the parameters of Penny and Sheldon’s relationship towards the middle of the series and concoct a love experiment of episode to tell the audience that is what they are is just stupid. Why do the love experiment in the first place? Siblings would never bother with that because it’s paramount to exploring incest.
Neither Sheldon and Penny are related. The writers wanted their relationship to be platonic friendship in order to push for two romances that are lackluster, that’s fine. But saying Sheldon and Penny are brothers and sisters all because of this is just plain flawed.
He literally found her attractive during their first meeting after she came out of the shower ''It has been some time since we've had a woman take her clothes off after which we didn't wanna rip our eyes out.” and there were other comments about him finding Penny attractive throughout the show.
And the look he gives her in the first ep, cmon! So much potential!
Their First Meeting
