<P> At The Cheesecake Factory, Bernadette is disappointed that things did not work out . Leonard sits down and starts a fight with Penny . Penny counters that he has to always be right . Sheldon thinks that Leonard is wrong more than anyone he knows . </P> <P> Leonard gets another early morning text . She demands to know why he was a jerk at work . They had agreed to be friends, not fight . Leonard heads toward her apartment because their new relationship was about sex after fighting . Later, Leonard asks Penny what exactly they are doing since every relationship scenario he plays out ends badly . Then Leonard hears Sheldon calling him . </P> <P> It turns out that Leonard was imagining everything, and he is still with Sheldon complaining about the Spock cardboard cut - out . Leonard decides that, despite the fact it seems that the relationship will once again end badly, he still wishes to ask Penny out . Penny asks whether he has thought things through . Leonard replies that he has and still thinks they should go ahead with it . Penny therefore agrees and then smiles . </P> <P> In Penny's bedroom, she is again choosing an outfit for her date . Daydreaming she sees herself in a wedding dress and heavily pregnant . Penny rubs her belly and tells Leonard that it is too late to start saying no now . Penny wakes up, apologizes and the dream reminds her to go to the drugstore . </P>

What episode did penny and leonard get back together
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