Before the wedding

Before his wedding with Jeyne, Ramsay makes it clear who is the one he wants. Because Reek belongs to Ramsay, and Ramsay belongs to Reek

Ramsay Bolton, Reek (Theon Greyjoy), Roose Bolton and Fat Walda, from 'A Dance With Dragons' ('A Song of Ice and Fire', George R.R. Martin).