Slut Wife Gives Bull Head on Beer Run. Cuckold Chronicles, #5

A husband and wife have been tiptoeing into the lifestyle with some success.  After a few parties and a threesome, life is good.  But the husband is a little apprehensive when the wife reconnects with an old male acquaintance on social media.  It seems the only night this new fella is available will require that they mix and mingle with him amongst their vanilla friends.  It is a slow build-up to something unexpected when the three of them go on a beer run.  When they arrive back at the party, everything has changed.  A wild night ensues and the husband realizes what he is, and that things will never be the same.