Two of the books in this series, Queen's Play and The Disorderly Knights, have blink-and-you-miss-it homosexual scenes.
In QP, Lymond is working undercover at the French Court and has to bed both women and men to get the information he needs. In DK, Lymond and all his friends are captured by the Turks and Lymond sleeps with the shiekh to try to win their freedom.
And in most of the books from QP onwards, there's a strong suggestion that Lymond's best friend and lieutenant, Jerott Blythe, is hopelessly in love with him. Until Lymond's twin sister turns up....