Watch How I Met Your Mother S04E12 online
Summary
Ted and Robin discover that sex with each other solve their fights as roommates, which makes Barney very jealous and angry. Meanwhile, Marshall reveals that he's too embarrassed to use the office bathroom.
Guest stars
Ambrit Millhouse,
Bryan Callen,
Ethan Dizon,
Gary Anthony Williams,
Greg Collins,
Heidi Montag,
Jack J. Bennett,
Jason Rogel,
Kendra Wilkinson,
Kevin Kirkpatrick,
Kim Kardashian,
Spencer Pratt