Are these two separate plants of the same type, or a single two-headed plant. These flowers might have pollinated each other if it's the former (or if you remember deliberately swapping pollen 😉) None of mine have flowered so I'm paying super close attention to what I see in photos.
@sushiwaitress - this plant has two heads. I received them like this as they are new so I don’t think anything happened. The flowers just seemed dried up and crunchy.
Dinterops - Lithops x Dinteranthus 16.12.18 This was more green when I first got them. One head didn't make it after an accidental rain episode.