How Do I Sex?

Notes:

Context provided with gif:

In a letter to his brother Leopold, Grand Duke of Tuscany, Joseph II described them as "a couple of complete blunderers." He disclosed to Leopold that the inexperienced--then still only 22-year-old--Louis XVI had confided in him the course of action he had been undertaking in their marital bed; saying Louis XVI "introduces the member," but then "stays there without moving for about two minutes," withdraws without having completed the act and "bids goodnight."