Just wondering other peolples thoughts on this for the past 4 months ive been having sex with hubbys best mate. He comes round when hubby is here and when hubby isnt present and is at work. Hubby fully approves and he was the one

who set this up. We had a threesome before and he got very jeolous but this time hes ok and he encourages me more and more each time
Do peolple find this acceptable and one time his friend came round early morning 3am we were at it like rabbits and i looked through window and i could see hubby watching is this right or am i in the wrong im kinda confused!!!