Yes, sometimes males will submit to other males. The one time it happened at my place it was a larger IJ male (that I got on breeding loan as a female) that I saw a hemipene on trying to copulate with my proven breeder male that was the smaller of the two. Not a happy moment. Was a bummer paying the shipping to send that male back and get no eggs Anyway, it does happen.
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Ben
www.australianaddiction.com