During an orgy the Princesses have control over when a Knight is in the active zone. Any Princess should feel free to ask to spend some time with any Knight.
The
feel of the orgy is enhanced if you interact with several people and
include some group activity. It also works best if everyone who
wishes gets to be involved in at least some activity.
For several reasons a Princess can always get her Knight back whenever she wishes.
If
you have set-up a room with a mattress in the middle and seating around
the mattress the Princesses have control over when a Knight is on the
mattress.
When a Princess on the mattress has finished with a
Knight she should sent him back to a seat. And a Princess on the
mattress can ask for any seated and not otherwise engaged Knight to
join her on the mattress.
A seated Princess can get on the
mattress whenever she wishes. She can either take a Knight with her, or
she can go to the mattress to join in with those already there. Note
that if she joins in with what is already happening she should not
disrupt the previous activity, but blend in as feels appropriate.

The
feel of an orgy is enhanced if there is variation on who you interact
with. So if the orgy is just two couples it is best if you spend time
with your partner as well as the other couple. And when there are many
at an orgy, it is good if you interact with several people during the
event.
Having some group activity also enhances the feel of group intimacy and that an orgy is different from normal.
For
example, if the orgy is just two couples, a Princess can enjoy holding
her Knight's erection while kissing and cuddling the other Knight.
At
a Sex orgy group interaction can involve two sexual activities. For
example a Knight might give oral sex to one Princess while another
plays with his erection.
But there is also a nice group feel
when only one sexual activity takes place and it is just a cuddle or
kiss with the third person.
A couple can share their enjoyment
of experiencing a sexual pleasure from someone else by having the
partner not receiving the sex cuddle the partner who is receiving it.
So, for example, a Knight can cuddle his Princess while another Knight
is giving her oral sex. Doing this means that the Knight gets to share
his Princess's enjoyment, and the Princess feels that her Knight has
been a part of her experience.

Varying
the combinations can also work well. So if it is just two couples there
is nothing wrong with having some times when one person watches the
other three (as long as that person does not feel left out).
And especially if sexual activity is taking place, some people may like to spend some time just watching.
Like
swapping dance partners at an old style dance, at an orgy it is ok for
a Princess to ask another Princess "Do you mind if I have him for a
while?" The Princess with the Knight should either give the asking
Princess the Knight, or say she will send him to her in a few minutes.
If
a Princess notices that her Knight is not happy in an interaction she
can fix things by going and requesting her Knight back. "Can I have my
Knight back" should always result in immediate hand-over of the Knight.
Note that this also means that if a Princess feels that her Knight is
spending too long with someone she can end that interaction.
It is good to ensure that everyone has some involvement at some stage of the orgy.
A
Princes can be nice to a neglected Knight by engaging in some activity
with him without gong as far as she would with someone she likes more.
Even just asking a neglected Knight to give her a foot massage means
that he gets to do something.
Variation can also be added to any orgy by playing some games.
For
example, one or more Knights could be blindfolded during some or all of
the orgy. That way they might not be sure who it is they are
interacting with.
It would even be possible to have an orgy where the Knights were blindfolded before
the got to see the other people present. That way the Knights would
never know who else was at the orgy - but their Princess's would have
seen all!

A
Devotional Orgy can last for several hours. Hence even at a Sex or Joy
Orgy most of the time will be spend just cuddling (maybe with lots of
Devotional Cuddles). That the Knights are not allowed to ejaculate
means that they will feel erotic energy during all of the orgy, and
thus always be ready to obey a Princess.
If a man is erect for a
very long time, his body can tire and his erection may go down for a
while even though he still feels very high erotic energy. One the great
joys of practicing Devotional Sex is that a Knight is erect (and thus
enjoying erotic energy) for many more hours each week than he would be
if he practiced `conventional´ sex. The downside to so much
arousal is that sometimes his erection needs a rest.
So it is to be expected during a orgy that there may be times when a Knight may not be erect when a Princess desires this.