A long time ago,
zortified asked for this threesome and this was one of the drafts that eventually became Having Faith.
itsabigrock wanted fic today, so I dusted this off. It's smut-free but UST heavy, set in S3 and obviously is very much on the same lines as 'Having Faith' so if it feels familiar, you know why ;-)
http://www.janedavitt.com/Two.html
http://www.janedavitt.com/Two.html