What is acceptable between a married couple (man/woman) is shown below. It must be a mutual agreement between the husband and wife what pleasurable action you wish to have during your sexual moments. If it is not mutual, then it is considered sinful.
Hebrews 13:4
Marriage should be honored by all, and the marriage bed kept pure, for God will judge the adulterer and all the sexually immoral
1 Corinthians 7:5
Do not deprive each other except by mutual consent and for a time, so that you may devote yourselves to prayer. Then come together again so that Satan will not tempt you because of your lack of self-control
Unacceptable and sinful in a marrige sexually
Galatians 5:19
The acts of the sinful nature are obvious: sexual immorality, impurity and debauchery
Ephesians 5:3
But among you there must not be even a hint of sexual immorality, or of any kind of impurity, or of greed, because these are improper for God's holy people
Colossians 3:5
Put to death, therefore, whatever belongs to your earthly nature: sexual immorality, impurity, lust, evil desires and greed, which is idolatry
1 Thessalonians 4:3
It is God's will that you should be sanctified: that you should avoid sexual immorality