This was a pic of my wife in the bathroom at the tantra course. The first three sexual encounters happened in the first 24 hours when my wife and her lover were spending a few days together prior to the tantra course.
Then my wife got her period and the course started. The first 3 days there are no sexual relations permitted. But at the halfway point on the fourth day my wife and her lover had their next experience in the group temple night.
They had a long passionate makeout followed by oral sex and mutual orgasms. She sucked on his cock. They rubbed their genitals together. He fingered her. Lots of different sexual positions. A few others around witnessing them as well.