why did we break up?

Don't know for sure but I remember when Kyle came over for some play. We usually get into the mood by watching a DVD of some bisexual bdsm with two guys and one woman. Although he brought a stack of dvds, we started off before the first one ended. It was his turn to tie me up and have some rough sex, going deep. Mary walked in on us while Kyle was thrusting. She often does this and we're cool about it. She sat in a chair and started fingering herself. She's watching us and the video of the threesome that is still playing. We usually end it by kissing & sucking Mary at both ends the way she likes.