כִּֽי־יִקַּ֥ח אִישׁ֙ אִשָּׁ֣ה חֲדָשָׁ֔ה לֹ֤א יֵצֵא֙ בַּצָּבָ֔א וְלֹא־יַעֲבֹ֥ר עָלָ֖יו לְכָל־דָּבָ֑ר נָקִ֞י יִהְיֶ֤ה לְבֵיתוֹ֙ שָׁנָ֣ה אֶחָ֔ת וְשִׂמַּ֖ח אֶת־אִשְׁתּ֥וֹ אֲשֶׁר־לָקָֽח׃ (ס)
The Five Books of Moses, by Everett Fox
This humane military rule may stem from a tradition separate from the one in 20:7. In any event, it appears to acknowledge sexuality as a part of marriage separate from procreation.