Dildo.
Yes, all kinds of oral sex are allowed between a husband and his wife so far they mutually enjoy it and accept it. Only, anal sex and sex during wife menstruation are forbidden. Refer to question below.
http://www.yousaytoo.com/darbiz/why-men-lose-interest-in-sex/6585
A low percentage of women may find out after they are married to the opposite sex that they are actually gay or even possibly bisexual (enjoy sex with males and females) and will leave their husband for another woman. There is an extremely low percentage of women that are not sure of their feelings for men in general especially if she has not been treated well by men throughout her life and may decide that living with another woman is much more enjoyable.
Obviously.
Yes. Everyone has fantasies, even your wife.
In sex a women generally take the man's penis and do oral sex, the man also does the same job with the women's vagina. Afterwards when the man and women feel the sexual urge the women makes the phose and man inserts penis into vagina and both enjoy the sex.
While I am not a woman myself, I understand that women can enjoy sex quite a lot, so it seems logical that they will feel something.
Enjoy the sex!
No.
Some do as it is a fetish they enjoy. Most don't though.
It may be a fetish of his or he may just enjoy the spiciness of it. Many men and women enjoy this and use it as part of the act.
100% if she has frequent anal sex with him and his gay lover.