What we know for certain, however, is that siblings, twins or otherwise, share sexual affection.
Of course there were people who were objecting, but we know watching or being with twins is a common fantasy and very popular in erotica.
The star has a new book coming out called Live Laugh Love, in which she shares her lessons from life from being in the spotlight since the age of nine.
Coleen dished that her boyfriend even asked her to bring her giraffe costume home from the Loose Women set to use in the bedroom.
It's a smart way to live life sometimes.