Sex for Pleasure a sin?

Please do not be offended at the topic but im serious about this question. If you are married to someone and you have sex with them with no intention to procreate but for pleasure is that a sin for a Christian?
Update: Thanks for the feedback but can anyone give me an answer from the bible? PLEASE as non sugar-coated as possible thanks so much
Update 2: Thanks im pretty sure i have my answer now :) much appreciated!
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