From Longman Dictionary of Contemporary Englishstrange bedfellowsstrange bedfellowstwo or more people, ideas etc that are related or working together in an unexpected way Rugby and art seem strange bedfellows. → bedfellow
Examples from the Corpus
strange bedfellows• Strange bedfellows Adversity - or is it perversity? - certainly makes strange bedfellows.• Mergers, acquisitions, joint ventures, and megacorporations, not to mention cross-company teams, often result in strange bedfellows.• Rumours say he's co-operating with some strange bedfellows.• The Prime Minister has, of course, produced some novel marriages, some very strange bedfellows. 