I used to have sex with a woman and it was great but when her husband joins , I simply cant get it up, she blows me , does her best but it simply refuses to get up, If he leaves the room , Iam back at it again, feeling really frustrating and embarrased. Stopped seeing her because the husband felt that I dont want him to have his fun (watching). I miss having sex with her. Any idea whats wrong with me???