Of course, you can turn each other on, light foreplay is always allowed.
However, bear in mind that real, penetrant sex, sensual horseplay only happens between stallions and mares, as in nature, as in real life.
Mares offer themselves and the active role is taken over by the stallions.
Anybody who sees things differently is not at the right party and will be told so.
We remind all participants again: a violation to this very basic law of the Horse Fair Fuck-Market immediately leads you to disqualification and expels you from further participation in the evening.
You will be asked to leave.