I'm looking for a manga, the plot is somewhat similar to Mr flower bride, I think. Anyway there was a scene where the mother in-law was visiting the married couple, and she was under the impression that it was a sham marriage, seeing as they were both men. Anyway she was being pretty mean (as mother in laws tend to be) to her son in law, and during another scene she accidentally walked in on them having -ahem- marital relations. Lol. Anyway if anyone knows the title please let me know!