Is having a mirror over the bed a sin?
How about having a canvas made of pictures of the couple- him posing in underwear/her in lingerie to decorate the bedroom wall?
Having trouble with defining chastity in marriage and the boundaries of lust in marriage.
When the 10 commandments were translated into Greek, the word for 'covet' was the same word used for 'lust.' The 10 commandments say not to covet your neighbor's wife, etc. It is sinful to covet something that belongs to your neighbor, that is not your own. But we are talking about a husband and wife desiring each other, not coveting. Coveting is something you do with that which is not your own.
If you put a mirror on the ceiling, make sure it is bolted/ hung/etc. really solid so that it doesn't fall on you two.
Notice the contrast in this passage. The sexual relationship with one's own wife is allowed and encouraged, but not one with the neighbor's wife.
Proverbs 5
15 Drink water from your own cistern,
And running water from your own well.
16 Should your fountains be dispersed abroad,
Streams of water in the streets?
17 Let them be only your own,
And not for strangers with you.
18 Let your fountain be blessed,
And rejoice with the wife of your youth.
19
As a loving deer and a graceful doe,
Let her breasts satisfy you at all times;
And always be enraptured with her love.
20 For why should you, my son, be enraptured by an immoral woman,
And be embraced in the arms of a seductress?
(NKJV)
