Sugar Rush is a TV show on the Food Network hosted by Warren Brown, a former lawyer who decided to become a pastry chef. Brown, who runs a pastry shop, Cake Love, and cafe, Love Cafe in Washington, DC, meets other pastry chefs and dessert makers and cooks with them. The show is currently in its second season, first airing in June 2006.
But younger brother thinking he got his period is played for laughs - plus he crossdresses in season 2 and it’s definitely more of a gimmicky thing than an attempt at writing a trans character
Sugar is seen in this way by many characters. Towards the start of the show this is how Kim feels about her, saying things like she feels better when "staring at her tits"