Hawks went to Endeavor's house, for no important reason. After a while with him, Hawks took advantage of a moment when there was no one else in the house besides the two of them and said something more... innapropriate

Hawks: hey, Endeavor-San~ let me put my eggplant in your peaches~

Endeavor: I don't have any eggplant left... but I can find you some peaches... Stay here. Endeavor walks away, not really understanding what Hawks meant. And Hawks thinks to himself: ^(why is he so innocent?...)^