Reply To: First Time Threesome by Carolyn | November 14, 2014 at 7:48 am #11609 CarolynParticipant My husband and I have had many all nighters so I know adding another person in the mix would only add to the feeling. We usually have one or two 12 hour sessions a month 🙂 helps us keep in shape 🙂 best exersice ever!!